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

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

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