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 person with blue sneakers and jeans with one foot on a skateboard and the other foot on the ground'. How many words start with the letter 'o' in the sentence.
[EX A]: 4

[EX Q]: Sentence: 'a plate with potato pancakes and a fork'. How many words start with the letter 'p' in the sentence.
[EX A]: 3

[EX Q]: Sentence: 'three motorcycles moving around orange cones on the pavement'. How many words start with the letter 'o' in the sentence.
[EX A]:
2