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

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

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