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

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

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