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

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

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