Claim: IO Theater has a branch in the United States.
Evidence: iO , or iO Chicago , -LRB- formerly known as `` ImprovOlympic '' -RRB- is an improv theater and training center in central Chicago , with a branch in Los Angeles called iO West.
Chicago -LRB- -LSB- ʃᵻˈkɑːɡoʊ -RSB- or -LSB- ʃᵻˈkɔːɡoʊ -RSB- -RRB- , officially the City of Chicago , is the third-most populous city in the United States.