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

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

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