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

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

*GRAMMAR*
zup -> RED 
 dax -> PINK 
 kiki -> GREEN 
 lug -> YELLOW 
 u1 tufa u2 -> [u1] [u2] 
 u1 fep u2 -> [u2] [u1] 
 x1 wif -> [x1] [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 