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

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

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