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

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

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