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 Input:
Sentence: 'a woman has just hit the tennis ball with her racket'. How many words start with the letter 't' in the sentence.

Ex Output:
2


Ex Input:
Sentence: 'a man is carrying a large case with him'. How many words start with the letter 'w' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'some miniature fruits and vegetables are on a tray'. How many words start with the letter 't' in the sentence.

Ex Output:

1