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

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

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