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

[EX Q]: Sentence: 'a young boy preparing his baseball mitt before his game'. Count the occurrences of the word 'his' in the given sentence.
[EX A]: 2

[EX Q]: Sentence: 'a person watching television showing a big bird on the screen'. Count the occurrences of the word 'screen' in the given sentence.
[EX A]: 1

[EX Q]: Sentence: 'a white toilet in a very small room'. Count the occurrences of the word 'very' in the given sentence.
[EX A]:
1