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

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

*GRAMMAR*
wif -> GREEN 
 dax -> BLUE 
 gazzer -> RED 
 kiki -> PINK 
 u1 tufa u2 -> [u2] [u2] [u1] [u2] 
 u1 blicket -> [u1] [u1] 
 u1 fep u2 -> [u1] [u2] [u1] [u2] 
 u1 x1 -> [u1] [x1] 
 