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

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

*GRAMMAR*
gazzer -> YELLOW 
 tufa -> RED 
 lug -> BLUE 
 kiki -> GREEN 
 x1 fep x2 -> [x2] [x1] [x1] 
 u1 dax u2 -> [u2] [u1] 
 x1 wif -> [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 