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

### Instruction:
 海蒂的公寓有丹妮尔的公寓的3倍多的房间。格兰特的公寓有海蒂的公寓的1/9的房间数。如果格兰特的公寓有2个房间，那么丹妮尔的公寓有多少个房间？


### Response:
 海蒂的公寓有2*9=<<2*9=18>>18个房间。
丹妮尔的公寓有18/3=<<18/3=6>>6个房间。