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: 'the woman is on the court playing a game of tennis'. How many words start with the letter 'i' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'a statue holding a red umbrella in a pond'. How many words start with the letter 's' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'two giraffes standing in a field while two more run in another direction'. How many words start with the letter 't' in the sentence.

Ex Output:

2