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: 'woman sitting at top of stairs talking on phone and smoking a cigarette'. How many words start with the letter 's' in the sentence.
[A]: 3


[Q]: Sentence: 'a traffic light indicating green for the bicycle lane'. How many words start with the letter 'g' in the sentence.
[A]: 1


[Q]: Sentence: 'a number of teddy bears on a shelf near a wall'. How many words start with the letter 'b' in the sentence.
[A]:
1