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.

Input: Consider Input: Sentence: 'a clock tower is standing next to palm trees'. How many words start with the letter 't' in the sentence.

Output: 3


Input: Consider Input: Sentence: 'a smiling woman sits at a table with a pizza and salad'. How many words start with the letter 'a' in the sentence.

Output: 5


Input: Consider Input: Sentence: 'a monkey up in a tree holding oone banana from a bunch'. How many words start with the letter 'a' in the sentence.

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Output: 3


