Question: William Frederick Truax, is a former professional American football tight end in the National Football League (NFL) from 1964 to 1973 for the Los Angeles Rams and the Dallas Cowboys, following the 1970 NFL season, Truax was traded by the Rams to the Cowboys for wide receiver Lance Rentzel, a former American football flanker, in which organization?
Sentence (from "Charley Cowan"): Charles Edward Cowan (June 19, 1938 in Braeholm, West Virginia – April 29, 1998 in Los Angeles, California) was a former American football offensive tackle who played fifteen seasons in the National Football League with the Los Angeles Rams from 1961 to 1975.
Relevant evidence: No