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

[EX Q]: Sentence: 'a furry dog standing next to a fire hydrant'. Count the occurrences of the word 'a' in the given sentence.
[EX A]: 2

[EX Q]: Sentence: 'a smiling young man with a furry hood sitting on a train'. Count the occurrences of the word 'a' in the given sentence.
[EX A]: 3

[EX Q]: Sentence: 'a white dog with a black eye laying on a blanket'. Count the occurrences of the word 'a' in the given sentence.
[EX A]:
3