TASK DEFINITION: In this task, you need to count the occurrences of the given word in the given sentence.
PROBLEM: Sentence: 'several young men playing a game on the grass near a body of water on a chilly day'. Count the occurrences of the word 'a' in the given sentence.

SOLUTION: 3

PROBLEM: Sentence: 'a zebra crossing the road in to the grass'. Count the occurrences of the word 'in' in the given sentence.

SOLUTION: 1

PROBLEM: Sentence: 'two females and one is throwing a yellow frisbee and the other a red one'. Count the occurrences of the word 'yellow' in the given sentence.

SOLUTION:
1