At the farther extremity of this hall , approaching slowly towards him , Cadmus beheld a female figure , wonderfully beautiful , and adorned with a royal robe , and a crown of diamonds over her golden ringlets , and the richest necklace that ever a queen wore .
Cadmus is a single man.
It is unclear if Cadmus is a single man. The system was confused by the context.
( z1 man :ARG1-of ( z2 single ) :domain ( z3 person :name ( z4 name :op "Cadmus" ) ) )