middle aged man riding a skateboard
A line of white cones
a skateboarder waiting his turn
a pair of folding  chairs for spectators
an old rusted water tower
a man on a skateboard
a competitor in a skateboard compitition
a skateboard preparing to do a trick
a man skateboarding down a street
a skateboarder covered in protective gear
a skateboarders knee guard
a skateboarders elbow guard
blue and white skateboard shoes
a red canopy of an umbrella
a brown skateboard helmet
brown skateboard polyurethane wheels
a beige canopy of an umbrella
an advertising banner on the fence
a black and yellow wrist guard
white safety cone markers
Man on skateboard
Red helment man is wearing
Man standing with his hands on his hips
White top skateboarder is wearing
Black and white knee pad
Right front wheel of skateboard
Skateboard's front left wheet
Red roof in the distance
Sky is clear blue
Tall tree in the background
a red helmet
a large red umbrella
a black and white knee pad
a black skateboard
a black wristband
a small white cone
a long white line
a black and white shirt
part of a green tree
a brown chair
A man is skateboarding
Helmet on a man's head
Sky is clear and blue
Four wheels on the skateboard
Elbow pad around man's elbow
Skateboarder has two arms raised
A pair of sneakers
White lines on the pavement
An open red umbrella
A pair of knee pads

Objects:
man
skateboard
cone
cone
cone
skateboarder
chairs
water tower
knee guard
elbow guard
shoes
canopy
helmet
wheels
umbrella
banner
fence
wrist guard
shirt
sky
tree
line
shirt
arm

Attributes:
name: man
attrs: doing a trick
skateboarding
competitor
middle aged
name: skateboard
attrs: black
name: cone
attrs: small
white
name: skateboarder
attrs: waiting
name: chairs
attrs: folding chairs
brown
name: water tower
attrs: rusty
old
name: knee guard
attrs: white
black
name: elbow guard
name: shoes
attrs: white
blue
name: canopy
attrs: red
large
name: helmet
attrs: red
brown
name: wheels
attrs: brown
name: umbrella
attrs: beige
name: banner
name: fence
name: wrist guard
attrs: yellow
black
blac
name: shirt
attrs: white
black
name: sky
attrs: blue
clear
name: tree
attrs: green
tall
name: line
attrs: white
long
name: arm
attrs: raised

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