arc(r_0022_0002__must_r_0022_0003__drive,r_0022_0001__You,arg0).
arc(r_0022_0002__must_r_0022_0003__drive,r_0022_0004__slower,mnr).
arc(r_0022_0005__when_tmp,r_0022_0002__must_r_0022_0003__drive,scope).
arc(r_0022_0005__when_tmp,r_0022_0007__is,restriction).
arc(r_0022_0007__is,r_0022_0010__or,arg0).
arc(r_0022_0009__traffic,r_0022_0008__heavy,attrib).
arc(r_0022_0010__or,r_0022_0009__traffic,conj1).
arc(r_0022_0010__or,r_0022_0012__weather,conj2).
arc(r_0022_0012__weather,r_0022_0011__bad,attrib).

( (IP-MAT (NP-SBJ (PRO You;{you}))
          (MD;~cat_Vi must;{must})
          (IP-INF-CAT (VB drive;{drive})
                      (ADVP-MNR (ADVR slower;{slowly})))
          (PP-SCON-TMP (P-CONN when;{when})
                       (IP-ADV (EX there;{there})
                               (BEP;~ex_V is;{be})
                               (NP-ESBJ (NLYR (NP (ADJP (ADJ heavy;{heavy}))
                                                  (N traffic;{traffic}))
                                              (CONJP (CONJ or;{or})
                                                     (NP (ADJP (ADJ bad;{bad}))
                                                         (N weather;{weather})))))))
          (PUNC .))
  (ID 22_a_driver_handbook))