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

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

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