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

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

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