| Phrase | Search Direction | Grammatical Function of Head Child (Priority List) |
| AP | Right-to-Left | HD ++ |
| AVP | Right-to-Left | HD ++ |
| PP | Left-to-Right | PR ++ |
| NP | Right-to-Left | HD ++ AT DT |
| HD | Left-to-Right | HD ++ |
| VP | Left-to-Right | IM IV ++ |
| S | Left-to-Right | UK FV VG IV ++ |
| XP | Left-to-Right | ++ HD MS +F XX SP ES AA KA MA OA RA TA VA XA +A AG AN YY VO TT |
| ROOT | Left-to-Right | ++ MS +F |