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

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

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