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

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

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