*SUPPORT*
IN: dax kiki kiki OUT: GREEN GREEN GREEN GREEN
IN: dax dax fep kiki OUT: GREEN GREEN RED GREEN GREEN RED
IN: dax OUT: GREEN
IN: tufa zup OUT: BLUE BLUE
IN: fep lug dax OUT: GREEN GREEN RED
IN: blicket lug tufa blicket OUT: BLUE PINK BLUE PINK PINK
IN: tufa blicket zup OUT: BLUE PINK BLUE PINK
IN: blicket zup lug dax kiki OUT: GREEN GREEN GREEN GREEN PINK PINK
IN: dax tufa blicket OUT: GREEN BLUE PINK
IN: blicket dax zup OUT: PINK GREEN PINK GREEN
IN: fep kiki OUT: RED RED
IN: blicket OUT: PINK
IN: dax kiki OUT: GREEN GREEN
IN: dax dax kiki OUT: GREEN GREEN GREEN GREEN

*QUERY*
IN: fep blicket kiki OUT: RED PINK RED PINK
IN: fep OUT: RED
IN: dax zup OUT: GREEN GREEN
IN: tufa OUT: BLUE
IN: dax dax zup OUT: GREEN GREEN GREEN GREEN
IN: blicket zup OUT: PINK PINK
IN: tufa fep zup zup OUT: BLUE RED BLUE RED BLUE RED BLUE RED
IN: fep zup zup kiki OUT: RED RED RED RED RED RED RED RED
IN: blicket kiki OUT: PINK PINK
IN: tufa zup zup OUT: BLUE BLUE BLUE BLUE

*GRAMMAR*
dax -> GREEN 
 tufa -> BLUE 
 blicket -> PINK 
 fep -> RED 
 x1 lug x2 -> [x2] [x2] [x1] 
 x1 kiki -> [x1] [x1] 
 x1 zup -> [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 