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

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

*GRAMMAR*
zup -> GREEN 
 lug -> PURPLE 
 tufa -> RED 
 wif -> BLUE 
 u1 dax u2 -> [u2] [u1] 
 x1 gazzer -> [x1] [x1] [x1] 
 x1 fep u1 -> [x1] [u1] 
 u1 x1 -> [u1] [x1] 
 