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 brown dog sitting next to a brown cat on a bed'. How many words start with the letter 'a' in the sentence.
3

Sentence: 'a living room with hd tv chair and decorations'. How many words start with the letter 'r' in the sentence.
1

Sentence: 'adult elephant standing close to a baby elephant'. How many words start with the letter 'a' in the sentence.

2