premise1: A DJ with headphones on is moving knobs up and down on his DJ equipment.
premise2: A shaven head young man wears headphones and works with a mixing board.
premise3: A man adjusts music on an audio mixer.
premise4: A man with earphones is hard at work.
premise: A DJ with headphones on is moving knobs up and down on his DJ equipment. A shaven head young man wears headphones and works with a mixing board. A man adjusts music on an audio mixer. A man with earphones is hard at work.
hypothesis: A man controlling a machine.