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;
FIG. 14 is a right elevational side view of the sink shown in FIG. 8;
FIG. 15 is a perspective view taken from the top, front, and right side of a third embodiment of a sink showing my new design;
FIG. 16 is a top plan view of the sink shown in FIG. 15;
FIG. 17 is a bottom view of the sink shown in FIG. 15;
FIG. 18 is a front elevational view of the sink shown in FIG. 15;
FIG. 19 is a rear elevational view of the sink shown in FIG. 15;
FIG. 20 is a left elevational side view of the sink shown in FIG. 15;
FIG. 21 is a right elevational side view of the sink shown in FIG. 15;
FIG. 22 is a perspective view taken from the top, front, and right side of a fourth embodiment of a sink showing my new design;
FIG. 23 is a top plan view of the sink shown in FIG. 22;
FIG. 24 is a bottom view of the sink shown in FIG. 22;
FIG. 25 is a front elevational view of the sink shown in FIG. 22;
FIG. 26 is a rear elevational view of the sink shown in FIG. 22;
FIG. 27 is a left elevational side view of the sink shown in FIG. 22; and,
FIG. 28 is a right elevational side view of the sink shown in FIG. 22.
The broken lines are for illustration purposes only and form no part of the claimed design.