*SUPPORT*
IN: fep dax zup gazzer OUT: PURPLE RED PURPLE RED
IN: fep dax lug OUT: PURPLE YELLOW
IN: zup lug wif OUT: RED YELLOW BLUE
IN: lug kiki OUT: YELLOW YELLOW
IN: wif zup fep dax wif OUT: BLUE RED PURPLE BLUE
IN: wif OUT: BLUE
IN: lug dax fep OUT: YELLOW PURPLE
IN: lug zup OUT: YELLOW RED
IN: lug dax wif OUT: YELLOW BLUE
IN: zup kiki gazzer OUT: RED RED RED RED
IN: wif fep kiki gazzer OUT: BLUE PURPLE PURPLE BLUE PURPLE PURPLE
IN: wif kiki OUT: BLUE BLUE
IN: lug gazzer OUT: YELLOW YELLOW
IN: lug OUT: YELLOW

*QUERY*
IN: lug kiki gazzer OUT: YELLOW YELLOW YELLOW YELLOW
IN: zup lug dax zup OUT: RED YELLOW RED
IN: fep dax zup OUT: PURPLE RED
IN: fep kiki OUT: PURPLE PURPLE
IN: zup OUT: RED
IN: fep gazzer OUT: PURPLE PURPLE
IN: lug dax zup OUT: YELLOW RED
IN: zup kiki OUT: RED RED
IN: fep wif OUT: PURPLE BLUE
IN: fep kiki gazzer OUT: PURPLE PURPLE PURPLE PURPLE

*GRAMMAR*
zup -> RED 
 lug -> YELLOW 
 wif -> BLUE 
 fep -> PURPLE 
 u1 dax u2 -> [u1] [u2] 
 x1 gazzer -> [x1] [x1] 
 u1 kiki -> [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 