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

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

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