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

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

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