TASK DEFINITION: In this task, you need to count the occurrences of the given word in the given sentence.
PROBLEM: Sentence: 'a woman standing on a beach flying a kite'. Count the occurrences of the word 'a' in the given sentence.

SOLUTION: 3

PROBLEM: Sentence: 'train cars lined up under a bridge full of traffic'. Count the occurrences of the word 'under' in the given sentence.

SOLUTION: 1

PROBLEM: Sentence: 'a vintage photo of some men posing for a picture'. Count the occurrences of the word 'vintage' in the given sentence.

SOLUTION:
1