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

[Q]: Sentence: 'a kitchen with a double sink and a window'. Count the occurrences of the word 'a' in the given sentence.
[A]: 3

[Q]: Sentence: 'a man and a woman riding a motorcycle next to a crowd'. Count the occurrences of the word 'a' in the given sentence.
[A]: 4

[Q]: Sentence: 'a white dog is sitting on a bench and there is another white dog in front of him and both have muzzles on their mouths'. Count the occurrences of the word 'is' in the given sentence.
[A]:
2