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

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

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