In this task, you need to count the number of words in a sentence that start with the given letter. Answer with numbers and not words.
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Question: Sentence: 'an older airplane flies over the country side'. How many words start with the letter 'o' in the sentence.

Answer: 2


Question: Sentence: 'person in profile and sunlight at a barred window'. How many words start with the letter 'a' in the sentence.

Answer: 3


Question: Sentence: 'a black bear laying on wooden floor next to trees and branches'. How many words start with the letter 'f' in the sentence.

Answer:
1