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

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

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