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: 'the two women were sitting on a blanket beside the river'. How many words start with the letter 't' in the sentence.
[A]: 3


[Q]: Sentence: 'montage color photograph of helmeted motorcycle riders and a rural fire station'. How many words start with the letter 'r' in the sentence.
[A]: 2


[Q]: Sentence: 'a street sign against a smoggy palm tree filled sky'. How many words start with the letter 's' in the sentence.
[A]:
4