There are difficulties about that . ''<br>But difficulties only sharpened the ingenuity of this admirable king .<br>`` The other fellow had a Flying Horse , '' said he .<br>By `` the other fellow '' King Prigio meant an Italian knight , Astolfo , who , in old times , visited the moon , and there found and brought back the common sense of his friend , Orlando , as you may read in the poem of Ariosto .<br>`` Now , '' reasoned King Prigio , `` if there is a Flying Horse at all , he is in the stables of the King of Delhi .<br>I must look into this . ''
King Prigio does not know if there is a Flying Horse.
The king said "if there is a flying horse at all" which means he does not know if there actually is one. 
( z1 know :polarity - :ARG0 ( z2 person :name ( z3 name :op "Prigio" ) :ARG0-of ( z4 have-org-role :ARG2 ( z5 king ) ) ) :ARG1 ( z6 truth-value :polarity-of ( z7 horse :ARG0-of ( z8 fly ) ) ) )