Disambiguation evidence for Vienna U4 metro line via surface form

"U4 (Vienna U-Bahn)"

Triples (1)

Triples where some other subject referred to this entity as "U4 (Vienna U-Bahn)".

U6 (Vienna U-Bahn) → interchangeWith →
"U4 (Vienna U-Bahn)"
↳ resolves to Vienna U4 metro line
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