*SUPPORT*
IN: zup dax wif tufa zup tufa zup OUT: RED RED BLUE RED
IN: wif tufa lug tufa gazzer dax zup OUT: RED YELLOW PINK BLUE
IN: zup kiki zup dax zup OUT: RED RED RED
IN: gazzer OUT: YELLOW
IN: zup gazzer OUT: RED YELLOW
IN: zup kiki lug OUT: RED PINK
IN: lug OUT: PINK
IN: zup OUT: RED
IN: zup wif OUT: RED BLUE
IN: lug dax zup OUT: RED PINK
IN: wif OUT: BLUE
IN: wif zup wif OUT: BLUE RED BLUE
IN: lug wif OUT: PINK BLUE
IN: zup dax zup tufa zup OUT: RED RED RED

*QUERY*
IN: zup kiki gazzer dax lug OUT: PINK RED YELLOW
IN: wif tufa lug OUT: PINK BLUE
IN: lug gazzer kiki wif OUT: PINK YELLOW BLUE
IN: lug zup dax lug OUT: PINK PINK RED
IN: wif tufa wif OUT: BLUE BLUE
IN: wif tufa wif tufa zup OUT: RED BLUE BLUE
IN: zup tufa gazzer dax zup OUT: RED YELLOW RED
IN: gazzer gazzer lug gazzer OUT: YELLOW YELLOW PINK YELLOW
IN: lug kiki zup tufa zup OUT: RED PINK RED
IN: gazzer kiki wif dax wif tufa lug OUT: PINK BLUE YELLOW BLUE

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