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 bed with a wooden chest of drawers on it'. How many words start with the letter 'o' in the sentence.

Ex Output:
2


Ex Input:
Sentence: 'the woman is standing in the rain with her umbrella'. How many words start with the letter 't' in the sentence.

Ex Output:
2


Ex Input:
Sentence: 'a bud light beer delivery truck that is parked in front of a castle like building with dark skies'. How many words start with the letter 't' in the sentence.

Ex Output:

2