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.

[Q]: Sentence: 'a little girl wearing silver shoes and a pink outfit standing in the rain holding a blue umbrella'. How many words start with the letter 'a' in the sentence.
[A]: 4


[Q]: Sentence: 'a large jet liner sitting on top of an airport runway'. How many words start with the letter 'a' in the sentence.
[A]: 3


[Q]: Sentence: 'the clock tower has a flag on top and many birds flying around'. How many words start with the letter 'f' in the sentence.
[A]:
2