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

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

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