two guys on dirt bikes
two yellow dirt bikes
tires painted white and blue
shadow from bike and rider
number 40 on bike
number 24 on bike
red X on shirt
a black and white outfit
a white and black outfit
blue X on tire
bikers in the photo
front wheel of the bike
back wheel of the bike
yellow and black bike
dirt on the ground
number on the bike
fox on the outfit
people in the distance
people riding dirt bikes
people racing dirt bikes
two people racing on dirt bikes
people that are racing
people on dirt bikes
people on yellow dirt bikes
poeple wearing helmets
a dirt biker with helmet
people waring jackets
people wearing pants
two guys on dirt bikes
tires painted white and blue
number 40 on bike
number 24 on bike
a white and blue helmet
black goggles on face
a silver helmet on head
clear goggles on face
a red and black outfit
a white and black outfit
people on motorized bikes
dirt bikes ride in
number on the bike
number on the bike
front tire of bike
rear tire of bike
front tire of the bike
jacket on the rider
jacket on the rider
people watching the event
man wearing a white helmet
man wearing a black helmet
white tires beside the dirt track
white helmet with blue accents
black 40 on the yellow motorcycle
white 24 on the yellow motorcycle

Objects:
number 40
bike
24
number
number
number
number
bike
bike
helmet
goggles
face
helmet
helmet
head
head
head
head
head
goggles
face
outfit
motorized bike
motorized bike
person
person
bikes
number
dirtbike
number
tire
bike
tire
bike
tire
bike
tire
jacket
rider
people

Attributes:
name: number 40
name: bike
name: 24
name: number
name: helmet
attrs: white
silver
blue
name: goggles
name: face
name: head
name: outfit
attrs: white
black
name: motorized bike
name: person
name: bikes
name: dirtbike
name: tire
attrs: rear
name: jacket
name: rider
name: people

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