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.
--------
Question: Sentence: 'a desk with a bunch of laptop and monitors on it'. How many words start with the letter 'w' in the sentence.

Answer: 1


Question: Sentence: 'person surfing in the sea on the surfboard'. How many words start with the letter 's' in the sentence.

Answer: 3


Question: Sentence: 'fourteen light planes flying in tight formation in overcast sky'. How many words start with the letter 'f' in the sentence.

Answer:
3