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.

[EX Q]: Sentence: 'the baseball catcher walks towards the pitching mound'. How many words start with the letter 't' in the sentence.
[EX A]: 3

[EX Q]: Sentence: 'a cake in the shape of a nurses hat written with the words congratulations danielle'. How many words start with the letter 'n' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'an adult elephant and a baby one with their trunks in the air'. How many words start with the letter 'a' in the sentence.
[EX A]:
5