poster (27 instances)

light (18 instances)

door (13 instances)

wall (12 instances)

ceiling (5 instances)

floor (5 instances)

map (5 instances)

exit sign (3 instances)

box (2 instances)

bracket (2 instances)

clock (2 instances)

door knob (2 instances)

trashwhole (2 instances)

air conditioner (1 instances)

bulletin (1 instances)

bulletin board (1 instances)

chair (1 instances)

cockroachentrance (1 instances)

doorknob (1 instances)

file cabinet (1 instances)

fire extinguisher (1 instances)

ground (1 instances)

light switch (1 instances)

monitor (1 instances)

name plate (1 instances)

partialfireextinguisher (1 instances)

picture (1 instances)

printer (1 instances)

vent (1 instances)

wallclock (1 instances)

whiteboard (1 instances)