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: 'three hotdogs on a picnic table with soft drinks'. How many words start with the letter 'w' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'different cars on the streets in a city setting'. How many words start with the letter 'i' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'a large body of water with multiple boats'. How many words start with the letter 'l' in the sentence.

Ex Output:

1