Question: Scoot Tigerair Pte Ltd. is a Singaporean low-cost long-haul airline owned by an airline that has a hub in which airport ?
Sentence (from "Scoot"): On 25 July 2017, Tigerair was officially merged into Scoot using Tigerair's air operator's certificate (AOC) but retaining the 'Scoot' brand.
Relevant evidence: No