Question: which district of Chūō, Tokyo, did Tokyo Expressway runs in a semicircular loop around
Sentence (from "Musashino Line"): The line forms part of what JR East refers to as the "Tokyo Mega Loop" (東京メガループ ) around Tokyo, consisting of the Keiyo Line, Musashino Line, Nambu Line, and Yokohama Line.
Relevant evidence: No