a black chalkboard
a black chalkboard with writing on it
a blackchalk board framed in
a black chalkboard on the wall
a white computer on the desk
a long  table
a chalkboard framed in
a chalkboard with white lettering
a chalkboard on the wall
a chair underneath the table
Chairs by a table
Table in a classroom
Laptop on a desk
Black computer on a desk
Chalkboard in front of a room
Computer on a table
Hands on a computer
Carpet on a floor
Cup on a table
Sign on a wall
classroom with chalkboard and people
classroom with chalkboard and people on laptops
people in laptops in classroom
people sitting with laptop computers
large chalkboard in classroom
full size chalkboard in room
blackboard on wall in room
empty chairs and tables in room
empty tables and chairs
large computer monitor next to wall
a chalk board on the wall
a black chalk board
a chalkboard with writing on it
a long table
a chair underneath a table
someone on a laptop
someone looking at a laptop
a desktop on a desk
a classroom
two people are in the classroom
a chalkboard is on the wall
metal chairs are at the tables
four computers are in the room
the people are using laptops
white writing is on the chalkboard
matching tables are lined up in the room
the wall is light beige
a white paper is hanging on the wall

Objects:
chalkboard
writing
wall
computer
desk
table
chair
chairs
laptop
desk
computer
hands
floor
cup
table
sign
people
classroom
laptops
person
paper

Attributes:
name: chalkboard
attrs: framed
full size
large
black
name: writing
attrs: white
name: wall
attrs: light beige
name: computer
attrs: white
large
black
name: desk
name: table
attrs: long
name: chair
name: chairs
attrs: empty
metal
name: laptop
name: hands
name: floor
attrs: carpet
name: cup
name: sign
name: people
attrs: sitting
name: classroom
name: laptops
name: person
name: paper
attrs: white

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