Question: What republic in the South Caucasus region is Lankaran International Airport located?
Sentence (from "Armenia"): Armenia ( , ; Armenian: Հայաստան , "Hayastan " , ] ), officially the Republic of Armenia (Armenian: Հայաստանի Հանրապետություն , "Hayastani Hanrapetut'yun " , ] ), is a sovereign state in the South Caucasus region of Eurasia.
Relevant evidence: No