['he', 'teach', 'Kim', 'part', 'as']
['<PRP>', 'transfer_mesg-37.1.1-1-1', '<PERSON>1', "Synset('idea.n.01')", 'as']
It is a Morse code, which he taught Kim as part of their Captain Proton adventures.
<PRP> is a <PERSON>16 code, which <PRP> taught <PERSON>1 as Synset('idea.n.01') of <PRP> <PERSON>17 Synset('work.n.01').