*SUPPORT*
IN: zup fep tufa wif kiki OUT: RED RED YELLOW GREEN
IN: zup dax zup OUT: RED RED
IN: blicket kiki wif fep tufa kiki OUT: PURPLE GREEN YELLOW YELLOW GREEN
IN: zup kiki dax wif OUT: RED YELLOW GREEN
IN: kiki dax wif OUT: YELLOW GREEN
IN: blicket fep OUT: PURPLE PURPLE
IN: kiki OUT: GREEN
IN: zup OUT: RED
IN: zup wif OUT: RED YELLOW
IN: zup zup fep tufa blicket fep tufa zup OUT: RED RED RED PURPLE PURPLE RED
IN: blicket wif dax blicket tufa zup OUT: PURPLE PURPLE YELLOW RED
IN: zup kiki OUT: RED GREEN
IN: kiki fep OUT: GREEN GREEN
IN: blicket wif OUT: PURPLE YELLOW

*QUERY*
IN: zup fep OUT: RED RED
IN: blicket tufa kiki OUT: PURPLE GREEN
IN: kiki blicket dax wif OUT: GREEN YELLOW PURPLE
IN: wif fep OUT: YELLOW YELLOW
IN: blicket wif fep OUT: PURPLE YELLOW YELLOW
IN: wif wif dax wif OUT: YELLOW YELLOW YELLOW
IN: kiki wif dax wif OUT: GREEN YELLOW YELLOW
IN: kiki wif fep OUT: GREEN YELLOW YELLOW
IN: blicket OUT: PURPLE
IN: wif dax zup OUT: RED YELLOW

*GRAMMAR*
kiki -> GREEN 
 zup -> RED 
 wif -> YELLOW 
 blicket -> PURPLE 
 u1 dax u2 -> [u2] [u1] 
 u1 fep -> [u1] [u1] 
 x1 tufa x2 -> [x1] [x2] 
 u1 x1 -> [u1] [x1] 
 