TASK DEFINITION: In this task, you need to count the occurrences of the given word in the given sentence.
PROBLEM: Sentence: 'some baseball players on a field playing baseball'. Count the occurrences of the word 'playing' in the given sentence.

SOLUTION: 1

PROBLEM: Sentence: 'a person on skis standing outside in the snow'. Count the occurrences of the word 'skis' in the given sentence.

SOLUTION: 1

PROBLEM: Sentence: 'a young boy at a picnic table is holding half a donut'. Count the occurrences of the word 'a' in the given sentence.

SOLUTION:
3