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.

The ticker symbol for General Electric is displayed on a screen on the floor of the New York Stock Exchange … ROME (Reuters) - General Electric (GE.N) is discussing with Italy's Ansaldo Energia the sale of some gas assets in an effort to gain antitrust clearance for its purchase of French group Alstom's (ALSO.PA) energy assets, two sources close to the matter said on Tuesday.

Answer: stock_exchange: General Electric, New York Stock Exchange