In this task, you need to count the occurrences of the given word in the given sentence.

Sentence: 'three blue suitcases stacked on top of each other and three smaller bags on top of each other in a corner'. Count the occurrences of the word 'smaller' in the given sentence.
1

Sentence: 'a young man is on his board while in the air'. Count the occurrences of the word 'his' in the given sentence.
1

Sentence: 'a sexy young girl leaning against a wall in a very erotic manner'. Count the occurrences of the word 'a' in the given sentence.

3