Categorize all the words from the sentence into either nouns, verbs, adjectives or adverbs.
The peaceful river gently rippled in the summer breeze.
Nouns: river, summer, breeze; Verbs: rippled, gently; Adjectives: peaceful; Adverbs: gently.
Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
Categorize all the words from the sentence into either nouns, verbs, adjectives or adverbs.

### Response:
Nouns: river, summer, breeze; Verbs: rippled, gently; Adjectives: peaceful; Adverbs: gently.