In this task, you need to count the occurrences of the given word in the given sentence.
--------
Question: Sentence: 'a baseball player holding a bat while playing a game'. Count the occurrences of the word 'a' in the given sentence.

Answer: 3


Question: Sentence: 'there is a man who is playing a game of tennis'. Count the occurrences of the word 'is' in the given sentence.

Answer: 2


Question: Sentence: 'a living room filled with furniture and a dog sitting on a blue couch'. Count the occurrences of the word 'a' in the given sentence.

Answer:
3