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

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

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