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

Sentence: 'a little girl holds a tooth brush while her mother stands in the background in a bathroom'. Count the occurrences of the word 'while' in the given sentence.
1

Sentence: 'a herd of goats look at a dog through a fence'. Count the occurrences of the word 'a' in the given sentence.
3

Sentence: 'brown horses pull a man in a cart through the ocean waves'. Count the occurrences of the word 'man' in the given sentence.

1