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

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

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