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

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

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