What is the relationship between Alcoa and public company 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.

“The split will likely result in higher public company costs, and Alcoa has yet to demonstrate the full earnings potential of the recent Firth Rixson, RTI and TITAL acquisitions,” Yu explained.

Answer: legal_form