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

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

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