AKPOS AND THE CAT

Teacher: If I give you 2 cats and another 2 cats and another 2 cats, how many cats will you have?
Akpos: Seven, Sir.
Teacher: No, listen carefully. If I gave you 2 cats, and another 2 cats and another 2 cats, how many will you have?
Akpos: Seven.
Teacher: Let me put it to you differently.
If I give you 2apples, and another 2 apples and another 2 apples, how many will you
have?
Akpos: Six.
Teacher: Good. Now if I gave you 2 cats, and another 2cats and another 2 cats, how many cats will you have?
Akpos: Seven!!!
Teacher (angry): Where did you get your seven from?
Akpos: Because I already have 1 cat at Home!