an eraser	a book	a desk
a blackboard	scissors	a notebook
a pencil	a classroom	paper

a pencil sharpener	a pen	a chair
a ruler	a computer	an eraser
a book	a notebook	a classroom

an eraser	a notebook	a pencil sharpener
a chair	a desk	a pencil
a classroom	a computer	a crayon

a classroom	a ruler	a desk
a pencil sharpener	a book	a pencil
a computer	a chair	a blackboard

a pencil	a desk	a book
a pen	a chair	a notebook
an eraser	paper	a classroom

a blackboard	a ruler	a notebook
a pencil	a computer	a crayon
a desk	a chair	a pencil sharpener

paper	a pencil sharpener	a crayon
scissors	a pencil	a classroom
a ruler	a book	a blackboard

a crayon	a pen	a desk
a chair	paper	scissors
a notebook	an eraser	a pencil

a desk	a blackboard	scissors
a notebook	a pen	a book
a ruler	a pencil sharpener	a computer

a classroom	a pen	a computer
scissors	a desk	a pencil sharpener
paper	an eraser	a blackboard

a ruler	a crayon	a book
paper	an eraser	a chair
a classroom	scissors	a pen

a ruler	a notebook	a blackboard
a crayon	a pen	a computer
scissors	paper	a classroom

a classroom	a blackboard	paper
a computer	a pencil sharpener	a ruler
a pencil	an eraser	scissors

a notebook	a classroom	a pen
a crayon	a blackboard	a pencil
a chair	paper	a book

a desk	a pencil sharpener	a ruler
scissors	an eraser	paper
a pencil	a book	a classroom

a book	a pen	a blackboard
a crayon	paper	scissors
a notebook	a pencil sharpener	a classroom