A shirtless man wearing long pants is doing a skateboard trick in a metropolitan area where a man and woman are walking away from the camera.
The shirtless man in long pants is skateboarding outside by the man and woman.
Wearing long pants is being in them.   Doing a skateboard trick is skateboarding outside as that is where skateboarding is done.  The man and woman are in the area of the skateboarder.
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