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: 'a very large pizza with pepperoni and olives and someone taking  massive slice'. How many words start with the letter 'l' in the sentence.
Example Output: 1

Example Input: Sentence: 'a husky is sleeping while wearing a green bandana'. How many words start with the letter 's' in the sentence.
Example Output: 1

Example Input: Sentence: 'a table topped with a vase full of flowers'. How many words start with the letter 't' in the sentence.
Example Output:
2