28_a_driver_handbook
If no lanes are marked and there are four lanes or more in your direction, you may only drive in either of the two lanes closest to the right edge of the road.

0028_0001__If if 0028_0006__and and 0028_0001__If->0028_0006__and [restriction] 0028_0022__eithe either[quant] 0028_0001__If->0028_0022__eithe [scope] 0028_0002__no no[quant] 0028_0006__and->0028_0002__no [conj1] 0028_0008__are_0028_0013__in are_in 0028_0006__and->0028_0008__are_0028_0013__in [conj2] 0028_0018__may may 0028_0022__eithe->0028_0018__may [scope] z_0028_5022 _ 0028_0022__eithe->z_0028_5022 [restriction] 0028_0003__lanes lanes 0028_0002__no->0028_0003__lanes [restriction] 0028_0004__are are 0028_0002__no->0028_0004__are [scope] 0028_0004__are->0028_0003__lanes [arg0] 0028_0005__marked marked 0028_0004__are->0028_0005__marked [prd] 0028_0011__or or 0028_0008__are_0028_0013__in->0028_0011__or [arg0] 0028_0015__direction direction 0028_0008__are_0028_0013__in->0028_0015__direction [arg1] 0028_0009__fou0028_0010__lanes four_lanes 0028_0011__or->0028_0009__fou0028_0010__lanes [conj1] z_0028_5011 _ 0028_0011__or->z_0028_5011 [conj2] 0028_0014__your your 0028_0015__direction->0028_0014__your [gen] 0028_0012__more more z_0028_5011->0028_0012__more [attrib] 0028_0020__drive drive 0028_0018__may->0028_0020__drive [scope] 0028_0020__drive->0028_0014__your [arg0] 0028_0019__only only 0028_0020__drive->0028_0019__only [nim] 0028_0020__drive->z_0028_5022 in[nim] 0028_0027__closest closest z_0028_5022->0028_0027__closest [attrib] 0028_0024__the_0028_0025__two_0028_0026__lanes the_two_lanes z_0028_5022->0028_0024__the_0028_0025__two_0028_0026__lanes of 0028_0029__the_0028_0031__edge the_edge 0028_0027__closest->0028_0029__the_0028_0031__edge to 0028_0030__right right 0028_0029__the_0028_0031__edge->0028_0030__right [attrib] 0028_0033__the_0028_0034__road the_road 0028_0029__the_0028_0031__edge->0028_0033__the_0028_0034__road of
arc(r_0028_0001__If,r_0028_0006__and,restriction).
arc(r_0028_0001__If,r_0028_0022__either__quant,scope).
arc(r_0028_0002__no__quant,r_0028_0003__lanes,restriction).
arc(r_0028_0002__no__quant,r_0028_0004__are,scope).
arc(r_0028_0004__are,r_0028_0003__lanes,arg0).
arc(r_0028_0004__are,r_0028_0005__marked,prd).
arc(r_0028_0006__and,r_0028_0002__no__quant,conj1).
arc(r_0028_0006__and,r_0028_0008__are_r_0028_0013__in,conj2).
arc(r_0028_0008__are_r_0028_0013__in,r_0028_0011__or,arg0).
arc(r_0028_0008__are_r_0028_0013__in,r_0028_0015__direction,arg1).
arc(r_0028_0011__or,r_0028_0009__four_r_0028_0010__lanes,conj1).
arc(r_0028_0011__or,z_0028_5011,conj2).
arc(r_0028_0015__direction,r_0028_0014__your,gen).
arc(r_0028_0018__may,r_0028_0020__drive,scope).
arc(r_0028_0020__drive,r_0028_0014__your,arg0).
arc(r_0028_0020__drive,r_0028_0019__only,nim).
arc(r_0028_0020__drive,z_0028_5022,r_0028_0021__in__nim).
arc(r_0028_0022__either__quant,r_0028_0018__may,scope).
arc(r_0028_0022__either__quant,z_0028_5022,restriction).
arc(r_0028_0027__closest,r_0028_0029__the_r_0028_0031__edge,r_0028_0028__to).
arc(r_0028_0029__the_r_0028_0031__edge,r_0028_0030__right,attrib).
arc(r_0028_0029__the_r_0028_0031__edge,r_0028_0033__the_r_0028_0034__road,r_0028_0032__of).
arc(z_0028_5011,r_0028_0012__more,attrib).
arc(z_0028_5022,r_0028_0024__the_r_0028_0025__two_r_0028_0026__lanes,r_0028_0023__of).
arc(z_0028_5022,r_0028_0027__closest,attrib).


IP-MAT PP-SCON P-CONN If IP-ADV ILYR ILYR NP-SBJ Q no NS lanes BEP;~La are ADJP-PRD ADJ marked CONJP CONJ and ILYR EX there BEP;~ex_Vpr are NP-ESBJ NLYR NLYR NUM four NS lanes CONJP CONJ or NLYR ADJP ADJR more PP-CLR P-ROLE in NP NP-GEN PRO;_genm_ your N direction PUNC , NP-SBJ PRO you MD;~cat_Vi may IP-INF-CAT ADVP-NIM ADV only VB;~I drive PP-NIM P-ROLE in NP Q;_nphd_ either PP P-ROLE of NP D the NUM two NS lanes ADJP ADJS closest PP P-ROLE to NP D the ADJP ADJ right N edge PP P-ROLE of NP D the N road PUNC .
( (IP-MAT (PP-SCON (P-CONN If;{if})
                   (IP-ADV (ILYR (ILYR (NP-SBJ (Q no;{no})
                                               (NS lanes;{lane}))
                                       (BEP;~La are;{be})
                                       (ADJP-PRD (ADJ marked;{marked})))
                                 (CONJP (CONJ and;{and})
                                        (ILYR (EX there;{there})
                                              (BEP;~ex_Vpr are;{be[in]})
                                              (NP-ESBJ (NLYR (NLYR (NUM four;{four})
                                                                   (NS lanes;{lane}))
                                                             (CONJP (CONJ or;{or})
                                                                    (NLYR (ADJP (ADJR more;{more}))))))
                                              (PP-CLR (P-ROLE in;{in})
                                                      (NP (NP-GEN (PRO;_genm_ your;{your}))
                                                          (N direction;{direction}))))))))
          (PUNC ,)
          (NP-SBJ (PRO you;{you}))
          (MD;~cat_Vi may;{may})
          (IP-INF-CAT (ADVP-NIM (ADV only;{only}))
                      (VB;~I drive;{drive})
                      (PP-NIM (P-ROLE in;{in})
                              (NP (Q;_nphd_ either;{either})
                                  (PP (P-ROLE of;{of})
                                      (NP (D the;{the})
                                          (NUM two;{two})
                                          (NS lanes;{lane})))
                                  (ADJP (ADJS closest;{close})
                                        (PP (P-ROLE to;{to})
                                            (NP (D the;{the})
                                                (ADJP (ADJ right;{right}))
                                                (N edge;{edge})
                                                (PP (P-ROLE of;{of})
                                                    (NP (D the;{the})
                                                        (N road;{road})))))))))
          (PUNC .))
  (ID 28_a_driver_handbook))