Question: Stanley: The Search for Dr. Livingston was a game whose Dr. is named after a man that was obsessed with discovering the sources of what river?
Sentence (from "Stanley: The Search for Dr. Livingston"): Stanley and the Search for Dr. Livingston (after "David Livingstone") is a side-scrolling action-adventure game for the Nintendo Entertainment System that appeared in one of the first 50 issues of Nintendo Power magazine.
Relevant evidence: Yes