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

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

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