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 large ceramic ornament is surrounded by a flower bed and several flowers bushes and shrubs on a bright cloudy day'. How many words start with the letter 'f' in the sentence.
Example Output: 2

Example Input: Sentence: 'a cat attentively watching a graphic on a television screen'. How many words start with the letter 't' in the sentence.
Example Output: 1

Example Input: Sentence: 'a table topped with lots of different types of fruit'. How many words start with the letter 't' in the sentence.
Example Output:
3