S --> co
S --> pro I
S --> prop I
S --> n I
S --> det N_I
S --> adj N_I
S --> pro V
S --> prop V
S --> n V
S --> det N_V
S --> adj N_V
S --> aux VI
S --> aux IP
S --> aux NP
S --> aux NP_NP
S --> aux NP_AP
S --> aux NP_PP
S --> wh I
S --> wh C
S --> wh V
S --> wh IP
S --> wh NP
S --> wh PP
S --> wh
S --> v NP
S --> part
S --> part NP
S --> adj
S --> adj PP
S --> prep NP
S --> prep 
S --> vi
S --> vi NP
S --> vi AP
S --> vi PP
S --> vi NP_NP
S --> vi NP_PP
S --> prop
S --> pro
S --> n
S --> det N
S --> adj N
S --> n PP
S --> det N_PP
S --> n VP
IP --> adj N_I
IP --> adj I
IP --> pro VI
IP --> prop VI
IP --> n VI
IP --> det N_VI
IP --> adj N_VI
IP --> pro VP
I --> aux 
I --> aux NP_PP
I --> aux AP_PP
I --> aux NP
I --> aux AP
I --> aux PP
I --> aux VP
I --> aux VI
I --> aux NP_VI
C --> n PP_I
C --> n I
C --> aux IP
C --> aux NP_AP
C --> aux NP_PP
C --> aux NP
C --> aux AP
C --> aux PP
C --> aux VP
V --> v
V --> v NP
V --> v AP
V --> v PP
V --> v NP_NP
V --> v NP_PP
V --> v AP_NP
V --> v T
VP --> part
VP --> part NP
VP --> part AP
VP --> part PP
VP --> part NP_PP
VP --> part T
VI --> vi
VI --> vi NP
VI --> vi AP
VI --> vi PP
VI --> vi NP_NP
VI --> vi NP_AP
VI --> vi NP_PP
VI --> vi T
T --> to VI
AP --> adj
AP --> adj T
AP_PP --> adj PP
AP_NP --> adj NP
PP --> prep PP
PP --> prep NP
PP --> prep 
PP_I --> prep NP_I
PP_PP --> prep PP
NP --> prop
NP --> pro
NP --> n
NP --> det N
NP --> adj N
NP --> n PP
NP --> det N_VP
NP --> pro PP_PP
NP_PP --> pro PP
NP_PP --> n PP
NP_PP --> det N_PP
NP_PP --> adj N_PP
NP_NP --> pro NP
NP_I --> n I
NP_VI --> pro VI
NP_AP --> pro AP
N --> n
N --> adj N
N_V --> n V
N_I --> n I
N_PP --> n PP
N_VP --> n VP
N_VI --> n VI
N_VI --> adj N_VI