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

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

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