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

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

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