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

Sentence: 'a group of cows standing next to each other'. Count the occurrences of the word 'a' in the given sentence.
1

Sentence: 'a bedroom with a bed next to a closet'. Count the occurrences of the word 'a' in the given sentence.
3

Sentence: 'a person standing up in a living room brushing his teeth'. Count the occurrences of the word 'a' in the given sentence.

2