a boy skateboarding in a park
a rubber wheel on a skateboard
skateboarding tennis shoes
a pair of white socks
skateboarding knee protectors
skateboarding elbow protectors
men's shorts
a man's yellow helmet
a wooden skateboard
rails at a skateboard park
Green rear wheels of a skateboard
A pair of black sneakers with white soles
A white sock on a foot
A person wearing an orange helmet
A hand holding onto the wall
A black ace bandon the elbow
a right hand hanging down
A white tee shirt
a pair of blue pants
A white metal fence
The person is on a skateboard.
The person is wearing elbows pads.
The elbow pads are black.
The person is wearing a helmet.
The helmet is yellow.
The person is wearing black shoes.
The person is wearing a white top.
The ground is gray.
The skateboard has green wheels.
The person is wearing shorts.
One boy is skating.
Boy is wearing helmet.
helmet is yellow color.
Boy is white socks.
Skateboard is black color.
Day time picture.
Half pipe is grey color.
Boy is wearing white shirt.
Boy is wearing blue shorts.
Boy is wearing black shoes.
skateboard has four wheels
wheels are green
skater is wearing white socks
skater is wearing a yellow helmet
skater has on knee pads
skater is on side of ramp
skater is wearing a elbow pad
light at the end fo ramp
fence is white
skater's tennis shoes are black

Objects:
boy
skateboard
wheel
shoes
socks
knee pads
elbow pads
shorts
helmet
rails
wheel
wheel
hand
wall
shirt
man
ground
wheel

Attributes:
name: boy
attrs: skateboarding
name: skateboard
attrs: wooden
black
name: wheel
attrs: rubber
green
name: shoes
attrs: black
name: socks
attrs: white
name: knee pads
name: elbow pads
attrs: black
name: shorts
attrs: blue
name: helmet
attrs: yellow
orange
name: rails
attrs: white
metal
name: hand
name: wall
attrs: grey
name: shirt
attrs: white
name: man
attrs: skating
name: ground
attrs: gray

Contrastive attributes:
attr1: orange
attr2: yellow
nouns: helmet