Question: What is the capital city of this Central American isthmus, to which the species of crab Aratus pisonii is native, bordering with Costa Rica?
Sentence (from "Nicaragua"): Nicaragua ( ; ] ), officially the Republic of Nicaragua (Spanish:    ), is the largest country in the Central American isthmus, bordered by Honduras to the north, the Caribbean to the east, Costa Rica to the south, and the Pacific Ocean to the west.
Relevant evidence: Yes