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.

As for our interconnect business, coming into the year, 2020 was already forecasted to be significantly burdened by ongoing issue surrounding Boeing 737 MAX, in addition to lower production of other Boeing and Airbus platforms.

Answer: manufacturer: Boeing 737, Boeing; developer: Boeing 737, Boeing; product_or_material_produced: Boeing, Boeing 737