Given phrases that describe the relationship between two words/phrases as options, extract the word/phrase pair and the corresponding lexical relationship between them from the input text. The output format should be "relation1: word1, word2; relation2: word3, word4". Options: 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.

While commercial volumes were down significantly due to business closures across the globe, we experienced a surge in residential deliveries at FedEx Ground and in transpacific, and charter flights at FedEx Express, which required incremental cost to serve.

Answer: subsidiary: FedEx, FedEx Ground; parent_organization: FedEx Ground, FedEx