In this task, you need to count the occurrences of the given word in the given sentence.
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Question: Sentence: 'a bridge on a river with a city in the skyline'. Count the occurrences of the word 'a' in the given sentence.

Answer: 3


Question: Sentence: 'two zebras in a dirt field looking for food'. Count the occurrences of the word 'for' in the given sentence.

Answer: 1


Question: Sentence: 'someone is holding up a hot dog with cheese on a bun'. Count the occurrences of the word 'a' in the given sentence.

Answer:
2