In this task, we ask you to elaborate the sentence without changing its general meaning. You can do so by explaining further the input sentence, using more precise wording, adding qualifiers and auxiliary information etc.
Q: Massachusetts Street ( also called Mass Street ) is the main street in downtown Lawrence .
A: 
Massachusetts Street ( often referred to colloquially as either Mass Street or Mass ) is the main street that runs through the central business district of downtown Lawrence , Kansas .