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

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

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