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

### Instruction:
 养鸡场里有14只鸡，奔跑场里有它的两倍。放养的鸡的数量是奔跑场里的两倍减去4只。有多少只鸡是放养的？


### Response:
 养鸡场：14只鸡
奔跑场：14(2)=28只鸡
放养：28(2)-4=52只鸡