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

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

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