TASK DEFINITION: In this task, you need to count the occurrences of the given word in the given sentence.
PROBLEM: Sentence: 'there is a man who is playing a game of tennis'. Count the occurrences of the word 'is' in the given sentence.

SOLUTION: 2

PROBLEM: Sentence: 'a woman with a walker is sitting on a park bench'. Count the occurrences of the word 'with' in the given sentence.

SOLUTION: 1

PROBLEM: Sentence: 'a person sitting down in front of a couch'. Count the occurrences of the word 'in' in the given sentence.

SOLUTION:
1