Question: Thomas Welby was the 2nd bishop of the island how far east of Rio de Janeiro?
Sentence (from "Saint Helena"): Saint Helena ( ) is a volcanic tropical island in the South Atlantic Ocean, 4,000 km east of Rio de Janeiro and 1,950 kilometres (1,210 mi) west of the Cunene River, which marks the border between Namibia and Angola in southwestern Africa.
Relevant evidence: Yes