In this task, you're given a statement, further information available on a particular linked term from the statement, and a question. Your job is to generate the answer to the question by using the information provided. If there is no clear answer obtainable, output 'none'.

Context: Before the start of the 1974–75 season they traded future Hall of Famer Nate Thurmond to the Chicago Bulls Link Information: Thurmond was drafted by the San Francisco Warriors Question: How many NBA teams did the man play for who the Warriors traded to the Bulls?
Answer: 3

Context: He wound up as a utility infielder with 1961 Yankees, winning the 1961 World Series Link Information: none Question: Who was the MVP of the World Series in 1961?
Answer: none

Context: Warrington spent most of his career on the Texas frontier and served under Colonel Ranald S. Mackenzie during the Texas-Indian Wars of the 1870s. Link Information: On February 25, 1871, he assumed command of the 4th U.S. Cavalry at Fort Richardson in Jacksboro, Texas. Question: What units did the Colonel Warrington served under inn the Texas-Indian Wars command?

Answer: the 4th U.S. Cavalry