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

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

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