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

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

*GRAMMAR*
kiki -> GREEN 
 zup -> PURPLE 
 fep -> RED 
 tufa -> YELLOW 
 x1 lug x2 -> [x1] [x2] [x1] 
 u1 dax u2 -> [u1] [u2] [u2] [u1] 
 u1 wif x1 -> [u1] [x1] [u1] 
 u1 x1 -> [u1] [x1] 
 