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

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

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