*SUPPORT*
IN: fep kiki gazzer OUT: PINK PINK PINK PINK
IN: blicket dax tufa dax kiki OUT: RED RED RED RED BLUE RED
IN: blicket dax kiki OUT: BLUE RED RED
IN: wif gazzer OUT: PURPLE PURPLE
IN: blicket gazzer OUT: BLUE BLUE
IN: blicket fep OUT: BLUE PINK
IN: wif kiki gazzer tufa fep OUT: PINK PINK PURPLE PURPLE PURPLE PURPLE
IN: dax OUT: RED
IN: wif kiki OUT: PURPLE PURPLE
IN: fep kiki OUT: PINK PINK
IN: dax dax wif kiki OUT: RED RED PURPLE PURPLE
IN: blicket OUT: BLUE
IN: fep OUT: PINK
IN: blicket kiki gazzer OUT: BLUE BLUE BLUE BLUE

*QUERY*
IN: fep tufa wif kiki tufa wif OUT: PURPLE PURPLE PURPLE PURPLE PURPLE PURPLE PINK
IN: wif blicket fep gazzer OUT: PURPLE BLUE PINK PURPLE BLUE PINK
IN: wif kiki gazzer OUT: PURPLE PURPLE PURPLE PURPLE
IN: blicket kiki OUT: BLUE BLUE
IN: blicket kiki tufa blicket OUT: BLUE BLUE BLUE BLUE
IN: wif kiki gazzer tufa dax kiki OUT: RED RED RED RED PURPLE PURPLE PURPLE PURPLE
IN: fep gazzer OUT: PINK PINK
IN: dax dax wif kiki gazzer OUT: RED RED PURPLE PURPLE RED RED PURPLE PURPLE
IN: wif gazzer gazzer OUT: PURPLE PURPLE PURPLE PURPLE
IN: wif OUT: PURPLE

*GRAMMAR*
wif -> PURPLE 
 blicket -> BLUE 
 dax -> RED 
 fep -> PINK 
 u1 kiki -> [u1] [u1] 
 x1 tufa x2 -> [x2] [x2] [x1] 
 x1 gazzer -> [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 