there is a very large bookcase with many books in this room
is there any people
no
is there any animals
no
do you see any windows
no
can you tell if it is day or night
no
do you see the wall
yes
do you see any clocks hanging on the wall
no
do you see any posters
no
what color is the wall
white
what color is the bookcase
light brown
is the light on in the room
yes