TASK DEFINITION: In this task, you need to count the occurrences of the given word in the given sentence.
PROBLEM: Sentence: 'a close up of a person sitting holding a sandwich'. Count the occurrences of the word 'a' in the given sentence.

SOLUTION: 3

PROBLEM: Sentence: 'a woman on a tennis court playing tennis with a racket'. Count the occurrences of the word 'a' in the given sentence.

SOLUTION: 3

PROBLEM: Sentence: 'a marketplace with several people wandering around and riding bikes'. Count the occurrences of the word 'riding' in the given sentence.

SOLUTION:
1