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.

LONDON (Reuters) - Whitbread (WTB.L), one of Britain's biggest employers, plans cost savings and will raise some of its prices to counter the substantial impact of enforced wage increases at its Premier Inn hotels and Costa Coffee businesses.

Answer: founded_by: Premier Inn, Whitbread; subsidiary: Whitbread, Premier Inn; parent_organization: Premier Inn, Whitbread; parent_organization: Costa Coffee, Whitbread; subsidiary: Whitbread, Costa Coffee; location_of_formation: Costa Coffee, LONDON