*SUPPORT*
IN: dax gazzer tufa OUT: RED PURPLE
IN: tufa blicket OUT: PURPLE YELLOW
IN: zup zup OUT: GREEN GREEN
IN: dax zup gazzer zup OUT: RED GREEN GREEN
IN: zup gazzer tufa OUT: GREEN PURPLE
IN: blicket OUT: YELLOW
IN: tufa OUT: PURPLE
IN: zup gazzer dax OUT: GREEN RED
IN: zup OUT: GREEN
IN: dax gazzer zup OUT: RED GREEN
IN: blicket tufa OUT: YELLOW PURPLE
IN: tufa gazzer dax OUT: PURPLE RED
IN: zup gazzer blicket OUT: GREEN YELLOW
IN: dax OUT: RED

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

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