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.

Example Input: Sentence: 'there is a very large table with many foods and people sitting at it'. How many words start with the letter 'a' in the sentence.
Example Output: 3

Example Input: Sentence: 'colorful flowers in a metal vase sitting on a mirror ledge'. How many words start with the letter 'c' in the sentence.
Example Output: 1

Example Input: Sentence: 'a young soccer player is preparing for the kick'. How many words start with the letter 'p' in the sentence.
Example Output:
2