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

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

*GRAMMAR*
gazzer -> BLUE 
 zup -> RED 
 fep -> YELLOW 
 tufa -> GREEN 
 u1 kiki -> [u1] [u1] [u1] [u1] [u1] [u1] 
 u1 wif u2 -> [u1] [u2] [u1] 
 x1 lug -> [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 