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

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

*GRAMMAR*
fep -> PURPLE 
 dax -> BLUE 
 kiki -> RED 
 blicket -> GREEN 
 u1 wif u2 -> [u2] [u1] 
 x1 gazzer x2 -> [x1] [x2] 
 x1 tufa -> [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 