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

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

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