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

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

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