TASK DEFINITION: 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.
PROBLEM: Sentence: 'a man riding on top of a wave on a surfboard'. How many words start with the letter 'o' in the sentence.

SOLUTION: 3

PROBLEM: Sentence: 'a lone zebra standing in the middle of a field'. How many words start with the letter 'i' in the sentence.

SOLUTION: 1

PROBLEM: Sentence: 'a person on skis goes across a snowy slope'. How many words start with the letter 'a' in the sentence.

SOLUTION:
3