Level 1:

(easy)

(medium)

(hard)

Level 2:

(easiest)

(easy)

(medium)

(hard)

Level 3:

(easy)

(medium)

(hard)

	black cat is next to the tree and white cat is next to black cat.
	white cat is behind the tree and black cat is next to the tree.
	black cat is next to the tree and black cat is behind white cat.
	white cat is under the tree and black cat is next to the tree.

Level 1:

(easy)

(medium)

(hard)

Level 2:

(easy)

(medium)

(hard)

	He are walking with me to the train.
	It is walking with me to the train.
	I am walking with me to the train.
	You are walking with me to the train.