In the context of the input sentence, determine the relationship between 'Airbus' and 'A350'.
Options: developer, product/material produced, director/manager, founded by

We recognized excess capacity costs of $83 million, abnormal production costs related to COVID-19 of 19 million, restructuring expenses of 6 million for cost alignment and headcount reductions, and loss on disposals of 23 million related to certain long-lived assets on the Boeing 787 and Airbus A350 programs.
product/material produced