In this task, you need to count the occurrences of the given word in the given sentence.
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Question: Sentence: 'a keyboard on a desk beneath a monitor'. Count the occurrences of the word 'a' in the given sentence.

Answer: 3

Question: Sentence: 'a pizza is on a cooling rack on a counter'. Count the occurrences of the word 'on' in the given sentence.

Answer: 2

Question: Sentence: 'a couple of horses standing on a grass covered field'. Count the occurrences of the word 'on' in the given sentence.

Answer:
1