P3E1B3B3L1E1S1
13 points
PEBBLES is validvalid
PEBBLE, to cover with pebbles (small, rounded stones) [v]
PEBBLE, to cover with small, rounded stones [v]
PEBBLE, to cover with pebbles (small, rounded stones) [v]
PEBBLE, to cover with small, rounded stones [v]