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

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

*GRAMMAR*
zup -> GREEN 
 lug -> BLUE 
 kiki -> PINK 
 wif -> RED 
 x1 fep x2 -> [x2] [x1] 
 u1 gazzer -> [u1] [u1] 
 u1 tufa u2 -> [u1] [u2] 
 u1 x1 -> [u1] [x1] 
 