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

[EX Q]: Sentence: 'three adult giraffe stand near water in the woods'. Count the occurrences of the word 'water' in the given sentence.
[EX A]: 1

[EX Q]: Sentence: 'a red and a white train cab on a rusty train track'. Count the occurrences of the word 'rusty' in the given sentence.
[EX A]: 1

[EX Q]: Sentence: 'several boats on a river in a canyon'. Count the occurrences of the word 'a' in the given sentence.
[EX A]:
2