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

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

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