instruction:
In this task, you need to count the occurrences of the given word in the given sentence.
question:
Sentence: 'a commuter train running under a bridge along urban tracks'. Count the occurrences of the word 'a' in the given sentence.
answer:
2

question:
Sentence: 'a plate of food a piece of cake and a cup of coffee are sitting on a wooden table'. Count the occurrences of the word 'of' in the given sentence.
answer:
3

question:
Sentence: 'a guy sits on a motorbike while another fixes it'. Count the occurrences of the word 'while' in the given sentence.
answer:
1