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

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

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