Disambiguation evidence for Berlin U-Bahn line U1 via surface form

"U-Bahn line U1"

Triples (1)

Triples where some other subject referred to this entity as "U-Bahn line U1".

U-Bahn line U9 → interchangeWith →
"U-Bahn line U1"
↳ resolves to Berlin U-Bahn line U1
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