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

[EX Q]: Sentence: 'a plastic container of food including chicken and broccoli'. Count the occurrences of the word 'and' in the given sentence.
[EX A]: 1

[EX Q]: Sentence: 'a person taking a photo of a person brushing her teeth'. Count the occurrences of the word 'of' in the given sentence.
[EX A]: 1

[EX Q]: Sentence: 'a male in a blue duke t shirt and sunglasses standing in the sun under a yellow umbrella'. Count the occurrences of the word 'a' in the given sentence.
[EX A]:
3