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

[Q]: Sentence: 'a man drinking from a glass standing next to a wine glass'. Count the occurrences of the word 'a' in the given sentence.
[A]: 3


[Q]: Sentence: 'a white cat sitting on a bed next to a night stand'. Count the occurrences of the word 'a' in the given sentence.
[A]: 3


[Q]: Sentence: 'an umbrella is tied to a bike on a rainy day'. Count the occurrences of the word 'on' in the given sentence.
[A]:
1