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

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

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