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

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

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