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

[Q]: Sentence: 'a bathroom with a vanity mirror toilette and kitchen sink next to a shower'. Count the occurrences of the word 'a' in the given sentence.
[A]: 3


[Q]: Sentence: 'couple of people sitting out in the snow with skis beside them'. Count the occurrences of the word 'them' in the given sentence.
[A]: 1


[Q]: Sentence: 'boy doing a trick on a skateboard at a skate park'. Count the occurrences of the word 'a' in the given sentence.
[A]:
3