['they', 'intrigue', 'EmptyParameter', 'aspect', 'by']
['<PRP>', 'amuse-31.1', 'EmptyParameter', "Synset('percept.n.01')", 'by']
Mostly they are intrigued by the mathematical aspects of the music.
mostly <PRP> are intrigued by the Synset('mathematical.a.01') Synset('percept.n.01') of the Synset('sensation.n.01').