-다고/-라고 그래(요) => "it's said (so)," “it is called . . ."

This sentence ending is a colloquial expression similar to the indirect speech forms -고 해(요) and -래(요). 

• 부산에 산다고 안 그랬니?
  => Didn't you say you live in Pusan?
• 저 건물 이름이 뭐니?
  => What's the name of that building?
• 독립 기념관이라고 그래.
  => They say it's Independence Hall. 

* -고 그래(요) is not to be confused with 그래(요), which has various meanings depending on the context, as shown in these examples: 

• 요즘 방학이니?
  => Are you vacation now? 
• 그래.
  => Yeah.
• 내일 모임에 나올래요?
  => Will you come to the meeting tomorrow?
• 그래요.
  => Yes, I will.
• 요즘 물건값이 너무 비싸요.
  => The prices are too expensive these days.
• 그래요.
  => You are right./I agree.