Disambiguation evidence for Once Upon a Mattress via surface form
"Once Upon a Mattress (original production)"
Triples (1)
Triples where some other subject referred to this entity
as "Once Upon a Mattress (original production)".
Happily Ever After (song)
→
firstPerformanceIn
→
"Once Upon a Mattress (original production)"
ⓘ
↳ resolves to Once Upon a Mattress
linked to:
Happily Ever After