boy has dark hair
boy has dark shirt
boy has dark pants
black and white shoes
skateboard is upside down
boy flips on skateboard
bike lying on side
dark wall behind boys
skateboard lying on ground
black wheels on bike
the man is skateboarding
the bike is parked
part of a flooor
part of a floor
part of a floor
edge fo a bard
part of a wheel
part of a spoke
part of a board
edge of a wheel
part of a floor
side of a floor
man doing skateboard trick
two men watching another man do a skate trick
skateboard laying on ground
skateboard flipping in mid air
man with left arm outstretched
man wearing black tank top and jeans
man wearing black skate shoes
man wearing glasses
bike on kickstand
bike laying on ground

Objects:
hair
boy
shirt
pants
shoes
skateboard
skateboard
bike
wall
wheels
bike
floor
spokes
trick
man
man
arm
tank top
jeans
shoes
glasses
kickstand

Attributes:
name: hair
attrs: dark
name: boy
name: shirt
attrs: dark
name: pants
attrs: dark
name: shoes
attrs: white
black
name: skateboard
attrs: upside down
lying
flipping
name: bike
attrs: lying
parked
name: wall
attrs: dark
name: wheels
attrs: black
name: floor
name: spokes
name: trick
name: man
attrs: watching
name: arm
attrs: stretched
name: tank top
attrs: black
name: jeans
name: glasses
name: kickstand

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