TASK DEFINITION: In this task, you need to count the occurrences of the given word in the given sentence.
PROBLEM: Sentence: 'a girl in a bathing suit with a pink umbrella'. Count the occurrences of the word 'a' in the given sentence.

SOLUTION: 3

PROBLEM: Sentence: 'a kitchen sink with a window behind it'. Count the occurrences of the word 'a' in the given sentence.

SOLUTION: 2

PROBLEM: Sentence: 'a woman and her husband taking a picture next to a smaller woman'. Count the occurrences of the word 'a' in the given sentence.

SOLUTION:
3