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

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

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