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

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

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