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

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

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