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

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

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