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

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

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