45_a_duplex
Google believes there are several use cases that justify the existence of Duplex .

%3 0045_0002__believes believes 0045_0001__Google google 0045_0002__believes->0045_0001__Google [arg0] 0045_0004__are are 0045_0002__believes->0045_0004__are [arg1] 0045_0006__use_0045_0007__cases use_cases 0045_0004__are->0045_0006__use_0045_0007__cases [arg0] 0045_0005__several several 0045_0006__use_0045_0007__cases->0045_0005__several [attrib] 0045_0009__justify justify 0045_0009__justify->0045_0006__use_0045_0007__cases [arg0] 0045_0010__the_0045_0011__existence the_existence 0045_0009__justify->0045_0010__the_0045_0011__existence [arg1] 0045_0013__Duplex duplex 0045_0010__the_0045_0011__existence->0045_0013__Duplex of
arc(r_0045_0002__believes,r_0045_0001__Google,arg0).
arc(r_0045_0002__believes,r_0045_0004__are,arg1).
arc(r_0045_0004__are,r_0045_0006__use_r_0045_0007__cases,arg0).
arc(r_0045_0006__use_r_0045_0007__cases,r_0045_0005__several,attrib).
arc(r_0045_0009__justify,r_0045_0006__use_r_0045_0007__cases,arg0).
arc(r_0045_0009__justify,r_0045_0010__the_r_0045_0011__existence,arg1).
arc(r_0045_0010__the_r_0045_0011__existence,r_0045_0013__Duplex,r_0045_0012__of).


IP-MAT NP-SBJ NPR Google VBP believes CP-THT-OB1 IP-SUB EX there BEP;~ex_V are NP-ESBJ ADJP ADJ several N use NS cases IP-REL NP-SBJ RPRO that VBP justify NP-OB1 D the N existence PP P-ROLE of NP NPR Duplex PUNC .
( (IP-MAT (NP-SBJ;{GOOGLE} (NPR Google;{Google}))
          (VBP believes;{believe})
          (CP-THT-OB1 (IP-SUB (EX there;{there})
                              (BEP;~ex_V are;{be})
                              (NP-ESBJ (ADJP (ADJ several;{several}))
                                       (N use;{use})
                                       (NS cases;{case})
                                       (IP-REL (NP-SBJ (RPRO that;{that}))
                                               (VBP justify;{justify})
                                               (NP-OB1 (D the;{the})
                                                       (N existence;{existence})
                                                       (PP (P-ROLE of;{of})
                                                           (NP;{ROBOT_CALLER} (NPR Duplex;{Duplex}))))))))
          (PUNC .))
  (ID 45_a_duplex))