Here's another line from Mass Effect: Revelations: "To accommodate such enormous labor requirements, the refineries offered free room and board to employees and their families in the surrounding work camps: prefab buildings assembled in an ever-widening circle around the chain-link fence protecting the refinery itself." Shouldn't a semi-colon be used here instead of a colon? I thought colons were used to introduce quotes and lists, and semi-colons are used to link sentences that are related. Is that correct? Many thanks.