man riding dirt bike
man riding dirt bike in competition
particles of dirt flying in the air
white helmet worn by dirt bike rider
The number 21 on a green sign
dirt mound on dirt bike course
rocks scattered among dirt
dirt bike rider wearing black gloves
large dirt mound behind dirt bike rider
dirt biker rider in white, black and red jersey
tilted motocross rider on dirt
boot on rider's foot
orange fender over front tire
white number on green sign
white helmet on rider's head
spokes on front wheel
words on rider's chest
goggles over rider's eyes
gloved hand on handlebar
dirt being kicked in the air
rider wearing white helmet
rider wearing pink goggles
green plate with number on front of bike
black tire on bike
silver brake on handle bar
silver brake on handle bar
rider wearing black glove
black glove on left hand
white and black boots
black rear tire on bike
A white dirt bike helmet
A man riding a dirt bike
Dirt flying up from the tire
A race number
A dirt bike wheel
The top of a tree
Dirt bike brake lever
A dirt bike
A racing track for dirt bikes
The top of a building
Biker riding a dirt bike.
Man with white helmet on the head riding a dirt bike.
Biker competing in a dirt bike show.
Biker riding a dirt bike at a show.
Man riding a dirt bike in bike event.
Dirt on the bike's front wheel.
Dirt bike number 21 in a bike competition.
Dirt biker wearing red and black gloves.
Biker wearing black gloves holding the handlebars.
Dirt biker driving a dirt bike on the ground.

Objects:
man
dirt bike
dirt
air
helmet
sign
number 21
dirt mound
dirt bike course
rock
rock
rock
rock
rock
glove
glove
jersey
boot
foot
fender
front tire
head
spoke
spoke
spoke
spoke
spoke
chest
words
goggles
handlebar
front of bike
brake
rear tire
tree
top
building
top

Attributes:
name: man
attrs: rider
name: dirt bike
name: dirt
name: air
name: helmet
attrs: white
name: sign
attrs: green
name: number 21
attrs: white
name: dirt mound
name: dirt bike course
name: rock
name: glove
attrs: red
black
name: jersey
attrs: red
white
black
name: boot
attrs: white
black
name: foot
name: fender
attrs: orange
name: front tire
attrs: black
name: head
name: spoke
name: chest
name: words
name: goggles
attrs: pink
name: handlebar
name: front of bike
name: brake
attrs: silver
name: rear tire
attrs: black
name: tree
name: top
name: building

Contrastive attributes:
attr1: black
attr2: white
nouns: boot
jersey