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

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

*GRAMMAR*
dax -> BLUE 
 blicket -> PINK 
 wif -> RED 
 tufa -> GREEN 
 u1 kiki -> [u1] [u1] [u1] 
 u1 gazzer -> [u1] [u1] [u1] 
 x1 lug x2 -> [x2] [x1] [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 