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

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

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