O1B3E1L1I1S1K5
13 points
OBELISK is validvalid
a four-sided shaft of stone with a pyramidal top [n OBELISKS]
a four-sided shaft of stone with a pyramidal top [n -S]
a four-sided shaft of stone with a pyramidal top [n OBELISKS]
a four-sided shaft of stone with a pyramidal top [n -S]