the man is skateboarding
the man is wearing knee pads
a person skateboarding
a  black knee pad
a black knee pad
a black elbow pad
a black elbow pad
a black helmet on a head
a logo on shirt
sunglasses on a face
a skateboard under a boy
a gree strap on the helmet
black elbow pad
plain black and brown skateboard
black and white skater shoes
black knee pads
khaki brown skater shorts
navy blue t-shirt with a white logo and writing
black framed sunglasses
black safety skating helmet
black top paved road
grass and dirt on the roadside
A man skate boarding on the street
Kneww guard worn by man
black helmet on the man's head
right elbow guard worn by man
Palm guard on the man's left hand
white wheel rollers under the skate board
Grass field near the street
Man's left foot placed at the end of the skateboard
Grey street near the skateboarder
Black t-shirt worn by man
blurry skateboarder wearing black
blurry view of a skateboarder
young man wearing a black helmet
young man wearing a black shirt and white shorts
black knee pads on knees
black sneakers on gray skateboard
skateboarder at a skatepark
arm with black elbow pads
arm with black wrist guard
man wearing khaki shorts

Objects:
man
knee pads
person
knee pad
knee pad
elbow pad
elbow
logo
shirt
ground
shoes
knee pad
knee pad
skater
shorts
logo
sunglasses
helmet
grass
ground
helmet
elbow
grass
street
skateboarder
t-shirt
skateboarder
knee pad
knee pad
knee
knee
sneaker
sneaker
skateboard
skateboarder
skatepark
elbow pad
elbow pad
arm
arm

Attributes:
name: man
name: knee pads
name: person
attrs: skateboarding
name: knee pad
attrs: black
knee
name: elbow pad
attrs: black
name: elbow
name: logo
attrs: white
name: shirt
name: ground
name: shoes
attrs: white
black
name: skater
name: shorts
name: sunglasses
attrs: framed
black
name: helmet
attrs: safety
black
skating
name: grass
name: street
attrs: grey
name: skateboarder
attrs: blurry
name: t-shirt
attrs: black
name: knee
name: sneaker
attrs: black
name: skateboard
name: skatepark
name: arm

Contrastive attributes:
attr1: black
attr2: white
nouns: shoes