G2L1A1S1S1P3A1P3E1R1S1
16 points
GLASSPAPERS is validvalid
GLASSPAPER,
GLASSPAPER, to sand with glasspaper (an abrasive composed of quartz granules on a paper backing)
GLASSPAPER,
GLASSPAPER, to sand with glasspaper (an abrasive composed of quartz granules on a paper backing)