arc(r_0002_0001__When, r_0002_0004__meet, restriction).
arc(r_0002_0001__When, r_0002_0026__by, scope).
arc(r_0002_0004__meet, r_0002_0002__two_r_0002_0003__vehicles, arg0).
arc(r_0002_0004__meet, r_0002_0006__a_r_0002_0008__road, r_0002_0005__on_nim16).
arc(r_0002_0006__a_r_0002_0008__road, r_0002_0007__steep, attrib19).
arc(r_0002_0010__neither_quant, r_0002_0011__can, scope).
arc(r_0002_0010__neither_quant, z_000_2_a_driver_handbook_28, restriction).
arc(r_0002_0011__can, r_0002_0006__a_r_0002_0008__road, nim25).
arc(r_0002_0011__can, r_0002_0012__pass, scope).
arc(r_0002_0012__pass, z_000_2_a_driver_handbook_28, arg0).
arc(r_0002_0016__facing, r_0002_0014__the_r_0002_0015__vehicle, arg0).
arc(r_0002_0016__facing, r_0002_0017__downhill, clr46).
arc(r_0002_0018__must, r_0002_0019__yield, scope).
arc(r_0002_0019__yield, r_0002_0014__the_r_0002_0015__vehicle, arg0).
arc(r_0002_0019__yield, r_0002_0020__the_r_0002_0021__right, arg1).
arc(r_0002_0020__the_r_0002_0021__right, r_0002_0025__way, r_0002_0023__of).
arc(r_0002_0026__by, r_0002_0018__must, scope).
arc(r_0002_0026__by, r_0002_0029__until, restriction).
arc(r_0002_0027__backing_r_0002_0028__up, r_0002_0014__the_r_0002_0015__vehicle, arg0).
arc(r_0002_0029__until, r_0002_0027__backing_r_0002_0028__up, scope).
arc(r_0002_0029__until, r_0002_0034__can, restriction).
arc(r_0002_0032__going, r_0002_0030__the_r_0002_0031__vehicle, arg0).
arc(r_0002_0032__going, r_0002_0033__uphill, clr89).
arc(r_0002_0034__can, r_0002_0035__pass, scope).
arc(r_0002_0035__pass, r_0002_0030__the_r_0002_0031__vehicle, arg0).

fof(formula,axiom,
    ? [R_2_16_FACING,R_2_14_THE_VEHICLE,R_2_17_DOWNHILL,R_2_32_GOING,R_2_30_THE_VEHICLE,R_2_33_UPHILL] :
      ( the_vehicle(R_2_14_THE_VEHICLE)
      & downhill(R_2_17_DOWNHILL)
      & the_vehicle(R_2_30_THE_VEHICLE)
      & uphill(R_2_33_UPHILL)
      & ! [R_2_4_MEET,R_2_2_TWO_VEHICLES,R_2_6_A_ROAD,R_2_7_STEEP] :
          ( ( two_vehicles(R_2_2_TWO_VEHICLES)
            & steep(R_2_7_STEEP)
            & meet(R_2_4_MEET,R_2_2_TWO_VEHICLES)
            & on_nim16(R_2_4_MEET,R_2_6_A_ROAD)
            & a_road(R_2_6_A_ROAD)
            & attrib19(R_2_6_A_ROAD,R_2_7_STEEP) )
         => ? [R_2_26_BY,R_2_29_UNTIL,R_2_34_CAN_PASS,R_2_27_BACKING_UP,R_2_18_MUST_YIELD,R_2_20_THE_RIGHT,R_2_25_WAY] :
              ( way(R_2_25_WAY)
              & by(R_2_26_BY)
              & conj1(R_2_26_BY,R_2_29_UNTIL)
              & until(R_2_29_UNTIL)
              & conj1(R_2_29_UNTIL,R_2_34_CAN_PASS)
              & can_pass(R_2_34_CAN_PASS,R_2_30_THE_VEHICLE)
              & conj2(R_2_29_UNTIL,R_2_27_BACKING_UP)
              & backing_up(R_2_27_BACKING_UP,R_2_14_THE_VEHICLE)
              & conj2(R_2_26_BY,R_2_18_MUST_YIELD)
              & must_yield(R_2_18_MUST_YIELD,R_2_14_THE_VEHICLE,R_2_20_THE_RIGHT)
              & the_right(R_2_20_THE_RIGHT)
              & of(R_2_20_THE_RIGHT,R_2_25_WAY) ) )
      & ! [Z_2_A_DRIVER_HANDBOOK_28] :
          ( true
         => ? [R_2_11_CAN_PASS,R_2_6_A_ROAD,R_2_7_STEEP] :
              ( steep(R_2_7_STEEP)
              & can_pass(R_2_11_CAN_PASS,Z_2_A_DRIVER_HANDBOOK_28)
              & nim25(R_2_11_CAN_PASS,R_2_6_A_ROAD)
              & a_road(R_2_6_A_ROAD)
              & attrib19(R_2_6_A_ROAD,R_2_7_STEEP) ) )
      & facing(R_2_16_FACING,R_2_14_THE_VEHICLE)
      & clr46(R_2_16_FACING,R_2_17_DOWNHILL)
      & going(R_2_32_GOING,R_2_30_THE_VEHICLE)
      & clr89(R_2_32_GOING,R_2_33_UPHILL) ) ).

( (IP-MAT (PP-SCON (P-CONN When;{when})
                   (IP-ADV (NP-SBJ;{VEHICLE} (NUM two;{two})
                                             (NS vehicles;{vehicle}))
                           (VBP;_I_ meet;{meet})
                           (PP-NIM (P-ROLE on;{on})
                                   (NP (D a;{a})
                                       (ADJP (ADJ steep;{steep}))
                                       (N road;{road})
                                       (IP-REL (ADVP-NIM (RADV where;{where}))
                                               (NP-SBJ;{VEHICLE} (Q;_nphd_ neither;{neither}))
                                               (MD;_cat_Vi_ can;{can})
                                               (IP-INF-CAT (VB;_I_ pass;{pass})))))))
          (PUNC ,)
          (NP-SBJ;{DOWNHILL_VEHICLE} (D the;{the})
                                     (N vehicle;{vehicle})
                                     (IP-PPL (VAG;_Ip_ facing;{face[downhill]})
                                             (ADVP-CLR (ADV downhill;{downhill}))))
          (MD;_cat_Vi_ must;{must})
          (IP-INF-CAT (VB;_Tn_ yield;{yield})
                      (NP-OB1 (D the;{the})
                              (N right;{right})
                              (PUNC <hyphen>)
                              (PP (P-ROLE of;{of})
                                  (PUNC <hyphen>)
                                  (NP (N way;{way})))))
          (PP-SCON (P-CONN by;{by})
                   (IP-PPL (VAG;_phr_Vp_ backing;{back[up]})
                           (RP up;{up})
                           (PP-SCON (P-CONN until;{until})
                                    (IP-ADV (NP-SBJ (D the;{the})
                                                    (N vehicle;{vehicle})
                                                    (IP-PPL (VAG;_Ip_ going;{go[uphill]})
                                                            (ADVP-CLR (ADV uphill;{uphill}))))
                                            (MD;_cat_Vi_ can;{can})
                                            (IP-INF-CAT (VB;_I_ pass;{pass}))))))
          (PUNC .))
  (ID 2_a_driver_handbook))