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

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

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