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: 'the man is wearing a suit and tie'. How many words start with the letter 't' in the sentence.
Example Output: 2

Example Input: Sentence: 'the half eaten meal consists of pizza and pasta'. How many words start with the letter 'p' in the sentence.
Example Output: 2

Example Input: Sentence: 'crossing a large stream in an elephant caravan'. How many words start with the letter 'c' in the sentence.
Example Output:
2