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

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

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