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

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

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