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

[EX Q]: Sentence: 'a black bird sitting on a wall next to grass'. Count the occurrences of the word 'next' in the given sentence.
[EX A]: 1

[EX Q]: Sentence: 'an image of two people playing a video game'. Count the occurrences of the word 'people' in the given sentence.
[EX A]: 1

[EX Q]: Sentence: 'a little girl posing for a photo with a dog'. Count the occurrences of the word 'a' in the given sentence.
[EX A]:
3