Below is an instruction that describes a task. Write a response that appropriately completes the request in Swahili. Please answer in Swahili.

### Instruction:
Dennis collected 10 rocks. He put all of them in his aquarium but his fish ate half of them. He was able to make the fish spit two out. How many of Dennis's rocks are left?

### Response:
 Dennis alikuwa na mawe 10/2= <<10/2=5>>5 yaliyobaki baada ya samaki kuyala.
Aliwafanya samaki watoe mawili, ambayo yalimwachia Dennis mawe 5+2= <<5+2=7>>7.