Question: A luxury train ran by what company travels a landlocked country in Southern Africa, neighbouring the Democratic Republic of the Congo to the north? 
Sentence (from "Zambia"): Zambia ( ), officially the Republic of Zambia, is a landlocked country in Southern Africa, neighbouring the Democratic Republic of the Congo to the north, Tanzania to the north-east, Malawi to the east, Mozambique, Zimbabwe, Botswana and Namibia to the south, and Angola to the west.
Relevant evidence: Yes