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: 'hospital display of different bed setups and a nurses uniform'. How many words start with the letter 'd' in the sentence.

Ex Output:
2


Ex Input:
Sentence: 'a take out sandwich and two bottles of soda'. How many words start with the letter 'a' in the sentence.

Ex Output:
2


Ex Input:
Sentence: 'the banana and bowls of food are sitting on the table'. How many words start with the letter 'f' in the sentence.

Ex Output:

1