But, with Alibaba's Jack Ma sitting on his left and Boeing (NYSE: BA - news ) chief Dennis Muilenburg to his right, Xi also pushed for some quid pro quo from his American hosts to help Chinese firms expand in the United States.
Take context from the input text and decide on the accurate relationship between 'Dennis Muilenburg' and 'Boeing' from the options provided.
Options: product/material produced, founded by, employer, industry