this is a person
this is a net
A man is playing tennis.
The tennis court is red and green with a white line.
Fencing is behind the man.
black tarp covering fence
red part of the tennis courts
The man is hitting the tennis ball 
man playing tennis
human playing tennis 
a man in a green and yellow stripped shirt swinging his racquet at the tennis ball while another man on the court is his tennis racket is playing tennis