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

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

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