What is the relationship between Esure and Insurance in the context of the input sentence. Choose an answer from: 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.

Admiral Group became FTSE 100 leader with a 65p, or 4.5pc, gain to £15.18, RSA Insurance rose 2.2pc to 440.2p, Direct Line advanced 0.7pc to 359.1p and mid-cap insurer Esure climbed 1.9pc to 269.3p.

Answer: industry