*SUPPORT*
IN: fep wif fep OUT: YELLOW YELLOW YELLOW
IN: dax wif kiki OUT: PURPLE PURPLE BLUE
IN: zup kiki kiki kiki OUT: GREEN PURPLE PURPLE PURPLE
IN: kiki wif zup OUT: GREEN GREEN PURPLE
IN: dax blicket OUT: BLUE BLUE BLUE
IN: zup fep tufa OUT: GREEN YELLOW GREEN YELLOW GREEN YELLOW
IN: zup fep wif kiki OUT: GREEN PURPLE PURPLE YELLOW
IN: fep wif zup OUT: GREEN GREEN YELLOW
IN: dax OUT: BLUE
IN: dax wif fep OUT: YELLOW YELLOW BLUE
IN: fep fep OUT: YELLOW YELLOW
IN: fep fep tufa OUT: YELLOW YELLOW YELLOW YELLOW YELLOW YELLOW
IN: kiki dax OUT: PURPLE BLUE
IN: kiki zup blicket OUT: PURPLE GREEN GREEN GREEN

*QUERY*
IN: fep wif kiki OUT: PURPLE PURPLE YELLOW
IN: fep tufa OUT: YELLOW YELLOW YELLOW
IN: fep blicket OUT: YELLOW YELLOW YELLOW
IN: zup wif dax OUT: BLUE BLUE GREEN
IN: kiki zup wif dax OUT: PURPLE BLUE BLUE GREEN
IN: fep OUT: YELLOW
IN: kiki wif dax OUT: BLUE BLUE PURPLE
IN: kiki blicket OUT: PURPLE PURPLE PURPLE
IN: zup blicket OUT: GREEN GREEN GREEN
IN: zup OUT: GREEN

*GRAMMAR*
kiki -> PURPLE 
 zup -> GREEN 
 dax -> BLUE 
 fep -> YELLOW 
 u1 wif u2 -> [u2] [u2] [u1] 
 u1 blicket -> [u1] [u1] [u1] 
 x1 tufa -> [x1] [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 