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

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

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