What is the relationship between bluebird bio and biotechnology 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.

Despite the sea of red out there, I am seeing some relative strength in biotechnology names such as bluebird bio , KaloBios Pharmaceuticals , Trevena and Lexicon Pharmaceuticals .

Answer: industry