TASK DEFINITION: In this task, you need to count the occurrences of the given word in the given sentence.
PROBLEM: Sentence: 'a group of guys playing a game of frisbee'. Count the occurrences of the word 'of' in the given sentence.

SOLUTION: 2

PROBLEM: Sentence: 'a colorful photo of a bike against a fence with mountains in the back'. Count the occurrences of the word 'a' in the given sentence.

SOLUTION: 3

PROBLEM: Sentence: 'a cat sitting on a blanket on a table'. Count the occurrences of the word 'a' in the given sentence.

SOLUTION:
3