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

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

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