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

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

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