Milan Metro Line 1
E441782
Milan Metro Line 1 is the oldest and one of the main rapid transit lines in Milan, Italy, running primarily on an east–west axis and serving key commercial and exhibition areas of the city.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Milan Metro Line 1 canonical | 4 |
| Milan Metro Line M1 (San Babila station) | 1 |
| Milan Metro line M1 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4477967 — 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: Milan Metro Line 1 Context triple: [Expo 2015, transportConnection, Milan Metro Line 1]
-
A.
Milan Metro Line 2
Milan Metro Line 2 is one of the main rapid transit lines in Milan, Italy, running in a predominantly northeast–southwest direction and serving key residential and commercial areas across the city.
-
B.
Milan Metro Line 3
Milan Metro Line 3 is a major north–south underground line of the Milan Metro system, connecting key railway hubs and central districts across the city.
-
C.
Turin Metro
The Turin Metro is a fully automated, driverless rapid transit system serving the city of Turin, Italy.
-
D.
Milan municipal tramway system
The Milan municipal tramway system is the extensive urban tram network serving Milan, Italy, known for its historic rolling stock and central role in the city’s public transportation.
-
E.
Sofia Metro
Sofia Metro is the rapid transit system serving Bulgaria’s capital city, providing high-capacity urban rail transport across Sofia and its metropolitan area.
- 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: Milan Metro Line 1 Target entity description: Milan Metro Line 1 is the oldest and one of the main rapid transit lines in Milan, Italy, running primarily on an east–west axis and serving key commercial and exhibition areas of the city.
-
A.
Milan Metro Line 2
Milan Metro Line 2 is one of the main rapid transit lines in Milan, Italy, running in a predominantly northeast–southwest direction and serving key residential and commercial areas across the city.
-
B.
Milan Metro Line 3
Milan Metro Line 3 is a major north–south underground line of the Milan Metro system, connecting key railway hubs and central districts across the city.
-
C.
Turin Metro
The Turin Metro is a fully automated, driverless rapid transit system serving the city of Turin, Italy.
-
D.
Milan municipal tramway system
The Milan municipal tramway system is the extensive urban tram network serving Milan, Italy, known for its historic rolling stock and central role in the city’s public transportation.
-
E.
Sofia Metro
Sofia Metro is the rapid transit system serving Bulgaria’s capital city, providing high-capacity urban rail transport across Sofia and its metropolitan area.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
metro line
ⓘ
public transport infrastructure ⓘ rapid transit line ⓘ |
| alsoKnownAs |
M1
NERFINISHED
ⓘ
Red Line NERFINISHED ⓘ |
| character |
partly elevated
ⓘ
underground ⓘ |
| cityServed | Milan NERFINISHED ⓘ |
| connectsWith |
Milan Metro Line 2
NERFINISHED
ⓘ
Milan Metro Line 3 NERFINISHED ⓘ Milan Metro Line 5 NERFINISHED ⓘ |
| country | Italy ⓘ |
| direction | east–west axis ⓘ |
| electrification | 750 V DC third rail ⓘ |
| fareSystem | integrated Milan public transport tariff system ⓘ |
| hasStation |
Bisceglie
NERFINISHED
ⓘ
Cadorna FN NERFINISHED ⓘ Duomo NERFINISHED ⓘ Loreto NERFINISHED ⓘ Pagano NERFINISHED ⓘ Rho Fiera NERFINISHED ⓘ Sesto 1º Maggio FS NERFINISHED ⓘ |
| hasTerminus |
Bisceglie
NERFINISHED
ⓘ
Rho Fiera NERFINISHED ⓘ Sesto 1º Maggio FS NERFINISHED ⓘ |
| isOldestLineOf | Milan Metro NERFINISHED ⓘ |
| lineColor | red ⓘ |
| lineNumber | 1 ⓘ |
| locatedIn |
Italy
ⓘ
Lombardy ⓘ Milan NERFINISHED ⓘ |
| openingDate | 1964-11-01 ⓘ |
| operatedBy | Azienda Trasporti Milanesi NERFINISHED ⓘ |
| operator | ATM Milan NERFINISHED ⓘ |
| partOf | Milan Metro NERFINISHED ⓘ |
| primaryFunction | urban passenger transport ⓘ |
| serves |
key commercial areas of Milan
ⓘ
key exhibition areas of Milan ⓘ |
| servesArea |
Fiera Milano exhibition area at Rho
NERFINISHED
ⓘ
Milan city centre ⓘ commercial districts of Milan ⓘ |
| system | Milan Metro NERFINISHED ⓘ |
| trackGauge | standard gauge ⓘ |
| transportType | rapid transit ⓘ |
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: Milan Metro Line 1 Description of subject: Milan Metro Line 1 is the oldest and one of the main rapid transit lines in Milan, Italy, running primarily on an east–west axis and serving key commercial and exhibition areas of the city.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Milan Metro Line M1 (San Babila station)
this entity surface form:
Milan Metro line M1