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

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

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