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

[EX Q]: Sentence: 'this is a dog sitting on a reclining chary with a pillow'. Count the occurrences of the word 'a' in the given sentence.
[EX A]: 3

[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 guy and a girl standing together on a floor with wii remotes'. Count the occurrences of the word 'a' in the given sentence.
[EX A]:
3