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

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

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