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

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

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