I am a finger on a man’s hand, and a hand is an arm, and an arm is a man’s, and a man

I am a finger on a man’s hand, and a hand is an arm, and an arm is a man’s, and a man is a creature, and creatures are things, and things are under the finger of a finger, and under the hand of a hand, and under the arm of a man, and under a creature’s, and under a thing’s, and under a thing’s, and under a thing