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

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

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