2 dogs play with a frisbee and toys on a grassy lawn
are there any people
no
what kind of dogs are they
1 large, 1 small
what color is the large 1
brown
what color is the small dog
white
is either dog wearing a collar
yes
what color is the collar
green
are there any trees around
no
what color is the frisbee
yellow
is there a ball
yes
what color is the ball
white