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

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

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