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

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

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