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

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

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