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

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

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