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.

Sentence: 'a clock tower in front of a dark sky'. How many words start with the letter 'f' in the sentence.
1

Sentence: 'green plants growing in a garden on the ground'. How many words start with the letter 'g' in the sentence.
4

Sentence: 'a snowboard that is sticking into the snow'. How many words start with the letter 's' in the sentence.

3