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.

Sentence: 'several people are playing frisbee in a park'. How many words start with the letter 'a' in the sentence.
2

Sentence: 'a group of people sitting at a long table in  a wine cellar'. How many words start with the letter 'a' in the sentence.
4

Sentence: 'a person stands on a baseball field ready to throw a ball'. How many words start with the letter 't' in the sentence.

2