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

Sentence: 'a woman on a tennis court playing tennis with a racket'. Count the occurrences of the word 'a' in the given sentence.
3

Sentence: 'a man riding a skateboard on a bench near some trees'. Count the occurrences of the word 'a' in the given sentence.
3

Sentence: 'a red brick clock tower next to trees and buildings'. Count the occurrences of the word 'clock' in the given sentence.

1