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

[Q]: Sentence: 'a woman holds a furry dog by its leash'. Count the occurrences of the word 'a' in the given sentence.
[A]: 2


[Q]: Sentence: 'a woman sits on a bed while using a laptop'. Count the occurrences of the word 'a' in the given sentence.
[A]: 3


[Q]: Sentence: 'a couple of zebras walk into a open area'. Count the occurrences of the word 'walk' in the given sentence.
[A]:
1