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

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

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