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