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

[Q]: Sentence: 'a bear standing on top a piece of pipe with a chain attached'. Count the occurrences of the word 'a' in the given sentence.
[A]: 3

[Q]: 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.
[A]: 1

[Q]: Sentence: 'there is a horse about to jump over a hurdle'. Count the occurrences of the word 'about' in the given sentence.
[A]:
1