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: 'many sheep gather on a truck and in a field eating hay'. How many words start with the letter 'h' in the sentence.
Example Output: 1

Example Input: Sentence: 'a kitchen with hard wood floors and metallic appliances'. How many words start with the letter 'm' in the sentence.
Example Output: 1

Example Input: Sentence: 'a person is eating a chinese dish with a fork'. How many words start with the letter 'e' in the sentence.
Example Output:
1