Mel Blount rule
E1035850
The Mel Blount rule is an NFL regulation introduced in 1978 that restricts defensive backs from making significant contact with receivers more than five yards beyond the line of scrimmage to promote passing offense.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Mel Blount rule canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T13353679 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Mel Blount rule Context triple: [Mel Blount, ruleNamedAfter, Mel Blount rule]
-
A.
Trent Tucker Rule
The Trent Tucker Rule is an NBA regulation that requires at least 0.3 seconds on the game clock to catch and shoot the ball, introduced after a controversial last-second shot by player Trent Tucker.
-
B.
NFL Rooney Rule
The NFL Rooney Rule is a league policy requiring teams to interview minority candidates for head coaching and senior football operations jobs, aimed at promoting diversity in leadership positions.
-
C.
Immaculate Reception
The Immaculate Reception is a famous 1972 NFL playoff play in which Pittsburgh Steelers running back Franco Harris made a miraculous last-second catch and touchdown, widely regarded as one of the greatest and most controversial moments in football history.
-
D.
“Seven Seconds or Less” offense
The “Seven Seconds or Less” offense is an up-tempo, fast-paced basketball system that emphasizes quick shots early in the shot clock, heavy pick-and-roll usage, and floor spacing to maximize offensive efficiency.
-
E.
Markbreit
Markbreit is a surname most notably associated with Jerry Markbreit, a prominent former National Football League referee.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Mel Blount rule Target entity description: The Mel Blount rule is an NFL regulation introduced in 1978 that restricts defensive backs from making significant contact with receivers more than five yards beyond the line of scrimmage to promote passing offense.
-
A.
Trent Tucker Rule
The Trent Tucker Rule is an NBA regulation that requires at least 0.3 seconds on the game clock to catch and shoot the ball, introduced after a controversial last-second shot by player Trent Tucker.
-
B.
NFL Rooney Rule
The NFL Rooney Rule is a league policy requiring teams to interview minority candidates for head coaching and senior football operations jobs, aimed at promoting diversity in leadership positions.
-
C.
Immaculate Reception
The Immaculate Reception is a famous 1972 NFL playoff play in which Pittsburgh Steelers running back Franco Harris made a miraculous last-second catch and touchdown, widely regarded as one of the greatest and most controversial moments in football history.
-
D.
“Seven Seconds or Less” offense
The “Seven Seconds or Less” offense is an up-tempo, fast-paced basketball system that emphasizes quick shots early in the shot clock, heavy pick-and-roll usage, and floor spacing to maximize offensive efficiency.
-
E.
Markbreit
Markbreit is a surname most notably associated with Jerry Markbreit, a prominent former National Football League referee.
- F. None of above. chosen
Statements (40)
| Predicate | Object |
|---|---|
| instanceOf |
NFL rule
ⓘ
gridiron football rule ⓘ |
| affectsPosition |
eligible receiver
ⓘ
tight end ⓘ wide receiver ⓘ |
| appliesToPosition |
cornerback
ⓘ
defensive back ⓘ safety ⓘ |
| appliesToRole | pass defender ⓘ |
| appliesWhen |
ball is in the air on a passing play
ⓘ
defender is covering an eligible receiver ⓘ |
| codifiedIn | NFL Rulebook NERFINISHED ⓘ |
| contactRestriction | no significant contact with receiver beyond 5 yards ⓘ |
| contactTypeRestricted | bump-and-run coverage beyond 5 yards ⓘ |
| distanceLimitFromLineOfScrimmage | 5 yards GENERATED ⓘ |
| effectOnLeague | contributed to more pass-oriented NFL offenses ⓘ |
| effectOnStrategy |
encouraged more timing-based passing routes
ⓘ
reduced effectiveness of aggressive bump-and-run defenses ⓘ |
| eraOfContext | 1970s NFL ⓘ |
| governingBody | NFL Competition Committee NERFINISHED ⓘ |
| inspiredByPlayer | Mel Blount NERFINISHED ⓘ |
| introducedInSeason | 1978 NFL season ⓘ |
| introducedInYear | 1978 ⓘ |
| jurisdiction | professional American football in the NFL ⓘ |
| league | National Football League ⓘ |
| lineOfScrimmageReference | contact rules differ within first 5 yards ⓘ |
| namedAfter | Mel Blount NERFINISHED ⓘ |
| notableImpact | helped shift NFL toward modern passing era ⓘ |
| penaltyResult | automatic first down ⓘ |
| penaltyType | illegal contact ⓘ |
| penaltyYardage | 5 yards ⓘ |
| phaseOfPlay | passing game ⓘ |
| primaryPurpose |
increase scoring
ⓘ
limit defensive physicality downfield ⓘ promote passing offense ⓘ |
| reasonForName | Mel Blount’s dominant physical coverage style ⓘ |
| ruleCategory |
illegal contact rule
ⓘ
pass coverage rule ⓘ |
| sport | American football ⓘ |
| status | in force ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Mel Blount rule Description of subject: The Mel Blount rule is an NFL regulation introduced in 1978 that restricts defensive backs from making significant contact with receivers more than five yards beyond the line of scrimmage to promote passing offense.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.