the four motorcycle riders
the red and white wall
the fence in the background
the rider on the left
the rider on the right
the dirt road they are riding on
the left rider's helmet
the right rider's license plate
grass in the background
the rear view mirror of the left rider
four men on motorcycles
man on a motorcycle
man on a motorcycle
man on a motorcycle
man on a motorcycle
man wearing a motorcycle helmet
man wearing a motorcycle helmet
man wearing a motorcycle helmet
man wearing a motorcycle helmet
four motorcycles
four riders on motorcycles
a group of motorcyclists
quartet of cycle riders
green and black rear tire
place where a license plate should be
red and white striped barrier tarp
black leather cycle jacket with red and white logo
inverted red and white triangle
black helmet with reflective face shield
fine gravel course
Four people on motorcycles
A red and white barrier
Chain link on top of the barrier
The riders are looking back
Black pants with a grey stripe
A red and white logo
A grey and black jacket
Green and black tires
A helmet with mirrored visor
Shadows from the motorcycles
Rear lights in the photo.
Motor cycle wheel in the photo
Motor cycle in the photo.
A helmet in the photo
A black jacket in the photo.
Exhaust pipe in the photo.
Motor cycle riders in the photo.
Wooden poles in the photo
Black shoe in the photo
Tree in the photo.

Objects:
background
fence
man
motorcycle rider
rider
plate
bike
mirror
motorcycle
man
man
man
man
motorcycle
man
motorcycle
helmet
man
motorcycle
riders
motorcycles
motorcyclist
motorcyclist
motorcyclist
motorcyclist
rider
rider
rider
license plate
place
tarp
jacket
logo
gravel
motorcycle
motorcycle
motorcycle
motorcycle
person
person
person
person
riders
riders
riders
riders
shadows
photo
helmet
pipe
poles
pole
pole
pole
pole
pole
shoe

Attributes:
name: background
name: fence
name: man
name: motorcycle rider
attrs: on left
name: rider
attrs: on right
quartet
name: plate
attrs: on right
name: bike
name: mirror
attrs: rear view
name: motorcycle
name: helmet
name: riders
attrs: looking back
name: motorcycles
name: motorcyclist
attrs: grouped
name: license plate
name: place
name: tarp
attrs: red
striped
white
name: jacket
attrs: white
leather
black
name: logo
attrs: red
name: gravel
attrs: fine
name: person
name: shadows
name: photo
name: pipe
name: poles
name: pole
attrs: wooden
name: shoe
attrs: black

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