TASK DEFINITION: In this task, you need to count the occurrences of the given word in the given sentence.
PROBLEM: Sentence: 'someone is holding up a hot dog with cheese on a bun'. Count the occurrences of the word 'a' in the given sentence.

SOLUTION: 2

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

SOLUTION: 1

PROBLEM: Sentence: 'three zebras standing close to each other in a field'. Count the occurrences of the word 'field' in the given sentence.

SOLUTION:
1