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

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

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