In this task, you need to count the occurrences of the given word in the given sentence.

Sentence: 'a dog stares into a camera inside of a car'. Count the occurrences of the word 'a' in the given sentence.
3

Sentence: 'a flat screen tv sitting in the corner of a living room next to a pumpkin'. Count the occurrences of the word 'a' in the given sentence.
3

Sentence: 'a soccer match with a player in full stride next to the soccer ball and a player from the other team approaching him'. Count the occurrences of the word 'a' in the given sentence.

3