FIG. 1 is a perspective view taken from the top, front, and right side of a sink showing my new design;
FIG. 2 is a top plan view of the sink shown in FIG. 1;
FIG. 3 is a bottom view of the sink shown in FIG. 1;
FIG. 4 is a front elevational view of the sink shown in FIG. 1;
FIG. 5 is a rear elevational view of the sink shown in FIG. 1;
FIG. 6 is a left elevational side view of the sink shown in FIG. 1;
FIG. 7 is a right elevational side view of the sink shown in FIG. 1;
FIG. 8 is a perspective view taken from the top, front, and right side of a second embodiment of a sink showing my new design;
FIG. 9 is a top plan view of the sink shown in FIG. 8;
FIG. 10 is a bottom view of the sink shown in FIG. 8;
FIG. 11 is a front elevational view of the sink shown in FIG. 8;
FIG. 12 is a rear elevational view of the sink shown in FIG. 8;
FIG. 13 is a left elevational side view of the sink shown in FIG. 8; and,
FIG. 14 is a right elevational side view of the sink shown in FIG. 8.
The broken lines are for illustration purposes only and form no part of the claimed design.