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

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

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