Disambiguation evidence for Once Upon a Mattress via surface form
"Once Upon a Mattress (Off‑Broadway, 1959)"
Triples (1)
Triples where some other subject referred to this entity
as "Once Upon a Mattress (Off‑Broadway, 1959)".
Shy
→
originalProduction
→
"Once Upon a Mattress (Off‑Broadway, 1959)"
ⓘ
↳ resolves to Once Upon a Mattress