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

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

*GRAMMAR*
wif -> BLUE 
 zup -> GREEN 
 gazzer -> RED 
 fep -> PURPLE 
 u1 kiki u2 -> [u2] [u1] 
 x1 lug x2 -> [x2] [x1] [x1] 
 x1 dax -> [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 