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.

[Q]: Sentence: 'four boats on the sand on the beach'. How many words start with the letter 'o' in the sentence.
[A]: 2


[Q]: Sentence: 'a mother bear and her two young are crossing a shallow river'. How many words start with the letter 'a' in the sentence.
[A]: 4


[Q]: Sentence: 'a group of young people standing around a wooden bench'. How many words start with the letter 'a' in the sentence.
[A]:
3