a cop on a motorcycle.
A cop under a bridge.
A freeway over pass.
A white line on a road.
a large leafy green tree.
a street light on a bridge.
a green freeway sign.
a forest of green trees near a freeway.
a police motorcycle.
a tall tree with lots of leaves.
biker on the road
white motorcycle on highway
person riding motorcycle on highway
light fixture hanging from pole
license plate on back of bike
rear black tire on bike
exhaust pipe on back of bike
green and white exit sign on highway
yellow and black road sign
white lines in the street
Two police officers in the middle of the highway
Police officer sitting in the shade under a bridge
Green highway sign hanging on the overpass
Shining blue light on the back of the police motorcycle
Yellow merge sign in the highway median
Vehicles about to merge onto the highway
White painted lines on the highway
Police officers protective helmet
Median on the side of the highway
Yellow roadway instructional sign
white clouds in blue sky
white clouds in blue sky
white clouds in blue sky
white clouds in blue sky
man on motorcycle
police officer on motorcycle
white clouds in blue sky
white clouds in blue sky
white clouds in blue sky
white clouds in blue sky
The police are in a big city
The police are looking for speeders
Some police are riding their motorcycles
The people are city police officers
The people are traffic control police
The police are looking for traffic violations
The police are doing their jobs
Some police are performing their duties
The person is casting a shadow
The police are enjoying their day

Objects:
sign
road
tree
light
bridge
freeway sign
forest
freeway
motorcycle
tree
leaves
biker
road
motorcycle
highway
light fixture
pole
license plate
bike
tire
bike
sign
highway
road sign
police officers
police officers
police officer
shade
bridge
highway sign
overpass
light
sign
lines
lines
lines
lines
lines
protective helmet
protective helmet
clouds
sky
sky
cloud
man
motorcycle
sky
clouds
blue sky
cloud
police
police
police
police
police
police
police
police
police
person
shadow
police
police

Attributes:
name: sign
attrs: yellow
white
green
name: road
attrs: gray
name: tree
attrs: tall
large
green
leafy
name: light
attrs: shining
blue
name: bridge
name: freeway sign
attrs: green
name: forest
name: freeway
name: motorcycle
attrs: rolling
white
name: leaves
name: biker
name: highway
name: light fixture
name: pole
name: license plate
name: bike
name: tire
attrs: black
name: road sign
attrs: yellow
black
name: police officers
name: police officer
name: shade
name: highway sign
attrs: green
name: overpass
name: lines
attrs: white
name: protective helmet
attrs: worn
name: clouds
attrs: white
name: sky
attrs: blue
name: cloud
attrs: white
name: man
name: blue sky
attrs: blue
name: police
attrs: riding
name: person
attrs: riding
name: shadow

Contrastive attributes: