premise: Two men are standing outdoors on a sunny day holding pieces of a new item, possibly a small grill, while one of the men studies the assembly instructions. hypothesis: A cookout event has just ended abruptly as the new grilling machine catches fire.
contradiction: As the men are holding pieces of a new grill while studying the assembly instructions, they must still be constructing the grill. If so, the grill cannot yet have caught fire ending the cookout.