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

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

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