instruction:
In this task, you need to count the occurrences of the given word in the given sentence.
question:
Sentence: 'a herd of goats look at a dog through a fence'. Count the occurrences of the word 'a' in the given sentence.
answer:
3


question:
Sentence: 'a group of three toilets with a person standing in front of the middle one'. Count the occurrences of the word 'toilets' in the given sentence.
answer:
1


question:
Sentence: 'a person riding a horse in a field of grass'. Count the occurrences of the word 'a' in the given sentence.
answer:

3