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.

Input: Consider Input: Sentence: 'chopped ingredients in little bowls lined up on a kitchen counter'. How many words start with the letter 'k' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'an older airplane flying above buildings and fields'. How many words start with the letter 'a' in the sentence.

Output: 4


Input: Consider Input: Sentence: 'a bird with spread wings is on the sand'. How many words start with the letter 'w' in the sentence.


Output: 2