The people are in a park
Some people are playing a game
Some people are standing in the grass
A person is catching a frisbee
Some frisbees are flying in the air
Some people are on their day off
Some people are out in the daytime
a bunch of trees in the background
a group of people
a row of trees
people are playing frisbee
tall trees around the park
short green grass 
people on a grassy field playing a game of frisbee in a park