premise: A choir of about fifty teens, the men in black pants and white tuxedo jackets and the women in blue gowns and white gloves, performs in a church setting, led by a conductor. hypothesis: The teen choir in casual attire practices in an auditorium.
contradiction: black pants, white tuxedo jackets, blue gowns and white gloves usually do not refer to casual attire. they either perform at a church setting or auditorium.