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

[EX Q]: 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.
[EX A]: 1

[EX Q]: Sentence: 'giraffe reaching up to eat the little buds on the tree'. Count the occurrences of the word 'the' in the given sentence.
[EX A]: 2

[EX Q]: Sentence: 'a kid does a trick on a skate board'. Count the occurrences of the word 'a' in the given sentence.
[EX A]:
3