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

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

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