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.

[EX Q]: Sentence: 'a boat in a canal and a peddled bike taxi cart in snow with residences'. How many words start with the letter 'a' in the sentence.
[EX A]: 4

[EX Q]: Sentence: 'many colorful umbrellas hang over a colorful street'. How many words start with the letter 'm' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'a large bell tower with a clock on it'. How many words start with the letter 'o' in the sentence.
[EX A]:
1