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 bed with a wooden chest of drawers on it'. How many words start with the letter 'o' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'a white glass vase filled with flowers on top of a table'. How many words start with the letter 'o' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'a family with a dad daugther  and son posing at a snow resort'. How many words start with the letter 'a' in the sentence.
[EX A]:
5