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

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

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