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

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

*GRAMMAR*
fep -> PURPLE 
 tufa -> BLUE 
 wif -> YELLOW 
 dax -> GREEN 
 x1 zup x2 -> [x1] [x1] [x2] [x1] 
 u1 lug u2 -> [u2] [u2] [u1] [u1] 
 x1 kiki -> [x1] [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 