box
box
pot
pot
fox
fox
?
pot
hot
mop
dot
?
log
dog
pot
hot
?
dog
hot
box
fox
mop
mop
dot
dot
?
pot
fox
hot
dog
?
log
hot
hop
mop
hot
hot
?
mop
dog
pot
fox
hop
hop
?
box
hop
dog
fox