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

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

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