This is a person
This is a person
This is a person
This is a person
This is a person
This is a person
This is a person
This is a person
This is a person
This is a person
boy on bike watching skateboarder
boy on bike watching skateboarder
boy on bike watching skateboarder
boy with skate board watching skateboarder
boy with skate board watching skateboarder
boy with skate board watching skateboarder
boy with skate board watching skateboarder
boy performing a trick on skateboard
skateboarder's shadow on concrete
concrete platform at skate park
a boy's blue and white tennis shoe
a black skateboard
a boy's green shirt
a skateboard ramp
a black and white bike
part of a walkway
part of a bench
a section of green grass
a boy's short cut hair
the leg of a boy
Skateboard and bike path
Skateboarder on the edge
Young skateboarder watching in the back
Biker getting ready to jump
Two bikers watching the skateboader
Biker in the background to the right watching skateboarder
Skater has green shirt on
Skater has brown curly hair
Skater has blue tennis shoes on
There is red writing on the skater shirt
man riding black skateboard
man wearing green shirt
man wearing light blue shoes
man wearing black pants
boy sitting on bicycle
boy  watching skateboarder
boy sitting on bike
boy wearing blue shirt
boy riding bicycle
man doing trick on ramp

Objects:
person
person
bicycle
person
bench
skateboard
boy
skateboard
shadow
concrete
skate park
shoe
shoe
shirt
ramp
grass
hair
leg
skateboarder
edge
people
writing
pants
shirt

Attributes:
name: person
attrs: skateboarding
sitting
bicycling
name: bicycle
attrs: white
black
name: bench
name: skateboard
attrs: black
name: boy
name: shadow
name: concrete
name: skate park
name: shoe
attrs: light blue
white
blue
name: shirt
attrs: green
blue
name: ramp
name: grass
attrs: green
name: hair
attrs: short
curly
brown
name: leg
name: skateboarder
attrs: watching
name: edge
name: people
name: writing
attrs: red
name: pants
attrs: black

Contrastive attributes:
attr1: black
attr2: white
nouns: bicycle
attr1: blue
attr2: green
nouns: shirt