Given the input sentence, please extract the subject and object containing a certain relation in the sentence according to the following relation types, in the format of "relation1: word1, word2; relation2: word3, word4". Relations include: product/material produced; manufacturer; distributed by; industry; position held; original broadcaster; owned by; founded by; distribution format; headquarters location; stock exchange; currency; parent organization; chief executive officer; director/manager; owner of; operator; member of; employer; chairperson; platform; subsidiary; legal form; publisher; developer; brand; business division; location of formation; creator.

At the handover of Qatar Airways’ first Airbus A350 at Toulouse last December, Al Baker told ATW that Al Maha was only awaiting the document before starting services, but that this was proving to be a “complex” process.

Answer: manufacturer: A350, Airbus; headquarters_location: Airbus, Toulouse; developer: A350, Airbus; product_or_material_produced: Airbus, A350