he's riding the bike
he's riding the board
he's wearing knee pads
he's wearing elbow pads
he's wearing a helmet
the wheels are green
the helmet is black
the bike is yellow
the rail is black
little boy on skate board
little boy on bicycle
black elbow pads
boy wearing knee pads
black skate board
black and orange bicycle
boy wearing red shirt
boy wearing helmet
boy wearing grey shirt
a kid riding a skateboard.
a kid wearing a helmet.
a kid wearing an arm guard.
a wheel on a skateboard.
a metal rail on steps.
a kid wearing a knee guard.
a cement step on a set of stairs.
a picture on a t shirt.
handle bars on a bike.
boy wearing a helmet
boy wearing red shirt
boy wearing green shorts
boy riding a bike
boy wearing a helmet
boy wearing arm brace
boy wearing blue shirt
boy wearing blue jeans
boy standing on a skate board
boy wearing knee brace
a boy riding a bike
a young boy riding a bike
a child riding a bike
a boy riding a skateboard
a young boy riding a skateboard
a child riding a skateboard
a boy wearing a red shirt
a boy wearing a blue shirt
boyws wearing helmets
two boys wearing a helmet

Objects:
boy
bike
shirt
boy
boy
jeans
skateboard
knee brace
knee brace
bike
boy
boy
bike
skateboard
child
boy
red shirt
shirt
boy
helmet
helmet

Attributes:
name: boy
attrs: young
name: bike
name: shirt
attrs: blue
name: jeans
name: skateboard
name: knee brace
name: child
name: red shirt
attrs: red
name: helmet

Contrastive attributes: