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

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

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