Question: Where is the head office of a Portuguese regional airline that is a subsidiary of TAP Portugal and operates scheduled international and domestic services from its bases at Lisbon Airport and Porto Airport on behalf of a Portuguese regional airline brand name for TAP Portugal which operate short- and medium-haul routes ?
Sentence (from "Orbest"): Orbest is a Portuguese airline headquartered in Lisbon and based at Lisbon Airport, that operates scheduled and charter flights in short and long haul operations, mainly out of Portugal on behalf of tour operators but also out of Spain on behalf of its sister company Evelop Airlines.
Relevant evidence: No