*SUPPORT*
IN: wif gazzer dax wif blicket gazzer OUT: RED YELLOW RED RED YELLOW RED YELLOW
IN: tufa dax gazzer fep OUT: BLUE YELLOW BLUE YELLOW
IN: tufa OUT: BLUE
IN: lug lug fep fep OUT: GREEN GREEN GREEN GREEN GREEN GREEN GREEN GREEN
IN: lug tufa lug lug fep OUT: GREEN BLUE GREEN GREEN GREEN BLUE GREEN GREEN
IN: gazzer blicket lug OUT: YELLOW YELLOW GREEN
IN: gazzer OUT: YELLOW
IN: wif dax tufa fep OUT: RED BLUE RED BLUE
IN: wif lug tufa dax tufa OUT: RED GREEN BLUE BLUE
IN: gazzer dax gazzer OUT: YELLOW YELLOW
IN: lug wif blicket gazzer OUT: GREEN RED GREEN RED YELLOW
IN: lug gazzer dax tufa blicket wif OUT: GREEN YELLOW BLUE GREEN YELLOW BLUE RED
IN: wif OUT: RED
IN: lug dax gazzer OUT: GREEN YELLOW

*QUERY*
IN: lug dax lug OUT: GREEN GREEN
IN: tufa dax wif OUT: BLUE RED
IN: lug OUT: GREEN
IN: lug tufa dax gazzer OUT: GREEN BLUE YELLOW
IN: gazzer wif fep fep OUT: YELLOW RED YELLOW RED YELLOW RED YELLOW RED
IN: gazzer gazzer dax wif blicket gazzer OUT: YELLOW YELLOW RED YELLOW YELLOW RED YELLOW
IN: lug wif dax lug fep OUT: GREEN RED GREEN GREEN RED GREEN
IN: tufa dax tufa OUT: BLUE BLUE
IN: wif dax gazzer blicket gazzer OUT: RED YELLOW RED YELLOW YELLOW
IN: gazzer wif tufa OUT: YELLOW RED BLUE

*GRAMMAR*
gazzer -> YELLOW 
 tufa -> BLUE 
 lug -> GREEN 
 wif -> RED 
 x1 blicket u1 -> [x1] [x1] [u1] 
 u1 dax u2 -> [u1] [u2] 
 x1 fep -> [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 