Sarah cleaned the teeth patiently. She started with the left part as Gwen held the plant. She scrubbed a particularly large and unmatchable yellowish-green teeth for quite a long time. Sarah rubbed hard and removed the dirt successfully. She worked on the inner side of the teeth.

She spared a quick glance at Gwen. "Would you work with the right side?" she asked, scrubbing. "We could finish faster" she said. This is pathetic.