*SUPPORT*
IN: gazzer gazzer dax tufa OUT: RED RED GREEN RED GREEN RED RED RED
IN: wif OUT: BLUE
IN: lug dax gazzer OUT: YELLOW RED YELLOW RED YELLOW YELLOW YELLOW
IN: tufa dax gazzer OUT: GREEN RED GREEN RED GREEN GREEN GREEN
IN: tufa kiki OUT: GREEN GREEN GREEN
IN: lug kiki OUT: YELLOW YELLOW YELLOW
IN: tufa OUT: GREEN
IN: gazzer dax gazzer OUT: RED RED RED RED RED RED RED
IN: tufa dax wif OUT: GREEN BLUE GREEN BLUE GREEN GREEN GREEN
IN: tufa lug zup lug OUT: GREEN YELLOW YELLOW GREEN YELLOW
IN: gazzer gazzer OUT: RED RED
IN: wif dax lug OUT: BLUE YELLOW BLUE YELLOW BLUE BLUE BLUE
IN: tufa dax tufa OUT: GREEN GREEN GREEN GREEN GREEN GREEN GREEN
IN: lug gazzer dax tufa OUT: YELLOW RED GREEN RED GREEN RED RED RED

*QUERY*
IN: tufa wif kiki OUT: GREEN BLUE GREEN BLUE GREEN BLUE
IN: wif dax gazzer OUT: BLUE RED BLUE RED BLUE BLUE BLUE
IN: lug gazzer OUT: YELLOW RED
IN: gazzer zup tufa OUT: RED GREEN RED
IN: lug zup gazzer OUT: YELLOW RED YELLOW
IN: gazzer dax tufa OUT: RED GREEN RED GREEN RED RED RED
IN: gazzer dax wif OUT: RED BLUE RED BLUE RED RED RED
IN: lug dax tufa OUT: YELLOW GREEN YELLOW GREEN YELLOW YELLOW YELLOW
IN: gazzer OUT: RED
IN: lug OUT: YELLOW

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