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

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

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