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 is standing next to palm trees'. How many words start with the letter 't' in the sentence.
3

Sentence: 'a picture of a mirror on a bike'. How many words start with the letter 'o' in the sentence.
2

Sentence: 'a couple of people skiing at night time'. How many words start with the letter 'a' in the sentence.

2