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.
Text: The MHL Specification was developed by Nokia Corporation, Samsung Electronics Co., Ltd., Lattice Semiconductor Corp., Sony Corporation, and Toshiba Corporation as a standard for mobile wired video/audio connectivity, which will enable the development of standard-compliant mobile and display products across a broad connectivity ecosystem.
user
product_or_material_produced: Samsung, Electronics; product_or_material_produced: Sony, Semiconductor
assistant