Question: Name the retired American gymnast who won gold in the 1984 Summer Olympics and who hosted a series of short American television segments called ABC Funfit aimed at promoting children's physical fitness?
Sentence (from "Len Saunders"): In 2009, Len created a new program called Exercise US (United States), which motivated children in the United States to exercise for 10 continuous hours, starting on the east coast of the US, ending 10 hours later on the west coast.
Relevant evidence: No