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

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

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