FIG. 1 is an upper perspective view of the sofa showing my design.
FIG. 2 is a front elevational view thereof;
FIG. 3 is a top view thereof;
FIG. 4 is a right side view thereof; and,
FIG. 5 is a back view thereof.
I claim the ornamental design for a sofa, as shown and described.
International Classification: 0601;