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

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

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