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

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

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