*SUPPORT*
IN: wif dax wif OUT: RED RED RED RED RED
IN: gazzer blicket OUT: YELLOW YELLOW
IN: wif wif blicket OUT: RED RED RED
IN: kiki lug OUT: GREEN GREEN GREEN GREEN GREEN
IN: gazzer fep OUT: YELLOW BLUE
IN: fep wif OUT: BLUE RED
IN: fep dax fep OUT: BLUE BLUE BLUE BLUE BLUE
IN: fep OUT: BLUE
IN: gazzer wif OUT: YELLOW RED
IN: kiki OUT: GREEN
IN: kiki blicket OUT: GREEN GREEN
IN: kiki dax wif blicket OUT: RED RED GREEN RED RED GREEN GREEN
IN: gazzer wif blicket OUT: YELLOW RED RED
IN: kiki kiki blicket OUT: GREEN GREEN GREEN

*QUERY*
IN: fep blicket OUT: BLUE BLUE
IN: fep dax wif OUT: RED BLUE RED BLUE BLUE
IN: wif dax gazzer kiki OUT: YELLOW GREEN RED YELLOW GREEN RED RED
IN: kiki dax kiki blicket OUT: GREEN GREEN GREEN GREEN GREEN GREEN GREEN
IN: wif OUT: RED
IN: wif dax fep blicket OUT: BLUE BLUE RED BLUE BLUE RED RED
IN: wif wif OUT: RED RED
IN: wif dax gazzer wif OUT: YELLOW RED RED YELLOW RED RED RED
IN: wif fep blicket OUT: RED BLUE BLUE
IN: wif blicket OUT: RED RED

*GRAMMAR*
wif -> RED 
 fep -> BLUE 
 kiki -> GREEN 
 gazzer -> YELLOW 
 u1 blicket -> [u1] [u1] 
 x1 lug -> [x1] [x1] [x1] [x1] [x1] 
 u1 dax x1 -> [x1] [u1] [x1] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 