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

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

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