bag - textbook - pencil case - desk
desk
board - computer - exercise book - window
window
notebook - textbook - exercise book - student
student
bag - window - door - chair
bag
map - poster - window - computer
computer
chair - board - door - teacher
teacher
pencil case - pen - rubber - notebook
notebook
rubber - pencil case - pens - chair
chair
pen - coat - rubber - ruler
coat