15_a_duplex
How could we know it actually worked in real life ?

%3 0015_0002__could_0015_0004__know could_know 0015_0001__How how 0015_0002__could_0015_0004__know->0015_0001__How [nim][mnr] 0015_0003__we we 0015_0002__could_0015_0004__know->0015_0003__we [arg0] 0015_0007__worked worked 0015_0002__could_0015_0004__know->0015_0007__worked [arg1] 0015_0005__it it 0015_0007__worked->0015_0005__it [arg0] 0015_0006__actually actually 0015_0007__worked->0015_0006__actually [nim][mod] 0015_0010__life life 0015_0007__worked->0015_0010__life in[nim][loc] 0015_0009__real real 0015_0010__life->0015_0009__real [attrib] z_0015_1002 [question] z_0015_1002->0015_0002__could_0015_0004__know [scope]
arc(r_0015_0002__could_r_0015_0004__know,r_0015_0001__How,nim_mnr).
arc(r_0015_0002__could_r_0015_0004__know,r_0015_0003__we,arg0).
arc(r_0015_0002__could_r_0015_0004__know,r_0015_0007__worked,arg1).
arc(r_0015_0007__worked,r_0015_0005__it,arg0).
arc(r_0015_0007__worked,r_0015_0006__actually,nim_mod).
arc(r_0015_0007__worked,r_0015_0010__life,r_0015_0008__in__nim_loc).
arc(r_0015_0010__life,r_0015_0009__real,attrib).
arc(z_0015_1002__question,r_0015_0002__could_r_0015_0004__know,keep_scope).


CP-QUE-MAT IP-SUB ADVP-129 WADV How MD;~cat_Vi could NP-SBJ PRO we IP-INF-CAT ADVP-NIM-MNR *ICH*-129 VB;~Tf know CP-THT-OB1 IP-SUB NP-SBJ PRO it ADVP-NIM-MOD ADV actually VBD;~I worked PP-NIM-LOC P-ROLE in NP ADJP ADJ real N life PUNC ?
( (CP-QUE-MAT (IP-SUB (ADVP-129 (WADV How;{how}))
                      (MD;~cat_Vi could;{can})
                      (NP-SBJ (PRO we;{we}))
                      (IP-INF-CAT (ADVP-NIM-MNR *ICH*-129)
                                  (VB;~Tf know;{know})
                                  (CP-THT-OB1 (IP-SUB (NP-SBJ;{ROBOT_CALLER} (PRO it;{it}))
                                                      (ADVP-NIM-MOD (ADV actually;{actually}))
                                                      (VBD;~I worked;{work})
                                                      (PP-NIM-LOC (P-ROLE in;{in})
                                                                  (NP (ADJP (ADJ real;{real}))
                                                                      (N life;{life})))))))
              (PUNC ?))
  (ID 15_a_duplex))