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

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

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