*SUPPORT*
IN: kiki OUT: GREEN
IN: kiki dax zup OUT: GREEN PINK
IN: wif OUT: RED
IN: zup dax wif gazzer wif OUT: PINK RED RED
IN: fep OUT: YELLOW
IN: kiki gazzer wif OUT: GREEN RED
IN: kiki blicket wif OUT: RED GREEN
IN: wif fep OUT: RED YELLOW
IN: zup dax kiki OUT: PINK GREEN
IN: fep kiki blicket kiki gazzer wif OUT: YELLOW GREEN GREEN RED
IN: wif blicket wif OUT: RED RED
IN: fep dax fep gazzer kiki OUT: YELLOW YELLOW GREEN
IN: fep blicket zup OUT: PINK YELLOW
IN: fep zup dax wif gazzer zup OUT: YELLOW PINK RED PINK

*QUERY*
IN: zup dax fep OUT: PINK YELLOW
IN: wif dax fep OUT: RED YELLOW
IN: zup dax wif OUT: PINK RED
IN: wif blicket kiki OUT: GREEN RED
IN: kiki blicket kiki OUT: GREEN GREEN
IN: fep dax zup OUT: YELLOW PINK
IN: wif dax wif OUT: RED RED
IN: wif zup dax kiki gazzer kiki gazzer zup OUT: RED PINK GREEN GREEN PINK
IN: fep blicket zup gazzer kiki OUT: PINK YELLOW GREEN
IN: fep dax fep OUT: YELLOW YELLOW

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