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

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

*GRAMMAR*
wif -> PURPLE 
 zup -> RED 
 tufa -> GREEN 
 fep -> PINK 
 u1 gazzer x1 -> [x1] [u1] 
 x1 lug x2 -> [x1] [x2] 
 u1 dax u2 -> [u2] [u1] 
 u1 x1 -> [u1] [x1] 
 