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

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

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