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

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

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