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

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

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