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

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

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