A surfer on his white surfboard catching a wave .
The man is surfing .
A surfer on his white surfboard catching a wave.
The man is surfing.
the pronoun his implies that the surfer is a man. the fact that the man is on a surfboard implies that he is surfing.
the pronoun his implies that the surfer is a man . the fact that the man is on a surfboard implies that he is surfing .