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: Aug 31 Apple Inc on Monday teamed up with network gear maker Cisco Systems Inc to improve the performance of its iPad and iPhone devices on Cisco's corporate network.
user
developer: iPhone, Apple Inc; product_or_material_produced: Apple Inc, iPad; product_or_material_produced: Apple Inc, iPhone; manufacturer: iPhone, Apple Inc; manufacturer: iPad, Apple Inc
assistant