*SUPPORT*
IN: gazzer blicket gazzer zup dax OUT: RED RED YELLOW RED
IN: kiki fep OUT: GREEN GREEN
IN: lug zup gazzer OUT: PURPLE RED PURPLE
IN: dax kiki dax fep OUT: YELLOW GREEN YELLOW YELLOW
IN: lug blicket dax zup dax OUT: PURPLE YELLOW YELLOW YELLOW
IN: dax kiki OUT: YELLOW GREEN
IN: lug blicket kiki fep OUT: PURPLE GREEN GREEN
IN: gazzer blicket kiki zup dax OUT: RED GREEN YELLOW GREEN
IN: kiki OUT: GREEN
IN: gazzer blicket dax lug gazzer OUT: RED YELLOW PURPLE RED
IN: kiki zup kiki OUT: GREEN GREEN GREEN
IN: dax fep OUT: YELLOW YELLOW
IN: lug fep OUT: PURPLE PURPLE
IN: lug blicket kiki OUT: PURPLE GREEN

*QUERY*
IN: gazzer kiki fep OUT: RED GREEN GREEN
IN: gazzer OUT: RED
IN: gazzer fep OUT: RED RED
IN: lug OUT: PURPLE
IN: lug kiki blicket gazzer dax gazzer OUT: PURPLE GREEN RED YELLOW RED
IN: kiki zup dax OUT: GREEN YELLOW GREEN
IN: gazzer gazzer fep OUT: RED RED RED
IN: gazzer blicket gazzer kiki OUT: RED RED GREEN
IN: lug blicket lug OUT: PURPLE PURPLE
IN: dax blicket kiki dax fep OUT: YELLOW GREEN YELLOW YELLOW

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