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

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

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