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

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

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