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

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

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