this is a person
this is a sign
this is a window pane
this is a window pane
this is a window pane
this is a window pane
this is a window pane
a man standing on a skateboard
a man riding a skateboard
a skateboard on two wheels
a sign on a concrete pillar
a man wearing jeans
a man wearing glasses
a man with one arm raised
three concrete steps
a reflection of a building in a window
a man wearing a white tee shirt
man on a skateboard
skateboard in the air
sign on a post
skater's shadow on the steps
a skater's dark colored pants
a skater's white t shirt
a skater's right arm
a skater's left arm
skater's dark colored hair
words on a sign
the boy is skateboarding
the shirt is white
the shirt is white
boy is wearing a t-shirt
reflection of a building
man riding a skateboard
Man with arms in air
No Skateboarding sign on pillar

Objects:
person
sign
window
window pane
skateboard
wheels
pillar
jeans
glasses
arm
steps
reflection
shirt
shadow
right arm
left arm
hair
words
building
arms

Attributes:
name: person
attrs: skateboarding
name: sign
attrs: hanging
name: window
attrs: large
name: window pane
attrs: very large
name: skateboard
attrs: mid air
name: wheels
name: pillar
name: jeans
attrs: dark
name: glasses
name: arm
attrs: raised
name: steps
attrs: concrete
name: reflection
name: shirt
attrs: white
name: shadow
name: right arm
name: left arm
name: hair
attrs: dark
name: words
name: building
name: arms
attrs: raised

Contrastive attributes: