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

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

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