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

[Q]: Sentence: 'a woman and a cat are sitting at a laptop'. Count the occurrences of the word 'a' in the given sentence.
[A]: 3


[Q]: Sentence: 'a man riding skis down a snow covered slope'. Count the occurrences of the word 'snow' in the given sentence.
[A]: 1


[Q]: Sentence: 'a man in a red shirt and plaid pants sits on a brown couch and holds a little baby'. Count the occurrences of the word 'a' in the given sentence.
[A]:
4