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

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

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