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

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

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