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

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

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