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

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

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