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

[EX Q]: Sentence: 'a kitchen with the tiles of a drop ceiling missing'. Count the occurrences of the word 'a' in the given sentence.
[EX A]: 2

[EX Q]: Sentence: 'a man is surfing in a river while another person watches'. Count the occurrences of the word 'a' in the given sentence.
[EX A]: 2

[EX Q]: Sentence: 'a woman in front of a bakery counter looking at baked goods on display behind glass and a man in motion behind the counter and a woman from the back behind him with some cannisters on high shelves on wall'. Count the occurrences of the word 'a' in the given sentence.
[EX A]:
4