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: 'the bearded man is posing in a suit'. How many words start with the letter 'a' in the sentence.
[A]: 1


[Q]: Sentence: 'a black and white cat sits in a bathroom sink'. How many words start with the letter 'a' in the sentence.
[A]: 3


[Q]: Sentence: 'a single person out in a sailboat on the lake'. How many words start with the letter 't' in the sentence.
[A]:
1