S1E1A1P3L1A1N1E1
10 points
SEAPLANE is validvalid
an airplane designed to take off from or land on the water [n SEAPLANES]
an airplane designed to take off from or land on the water [n -S]
an airplane designed to take off from or land on the water [n SEAPLANES]
an airplane designed to take off from or land on the water [n -S]