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

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

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