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

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

*GRAMMAR*
gazzer -> GREEN 
 wif -> BLUE 
 kiki -> RED 
 zup -> YELLOW 
 x1 lug -> [x1] [x1] 
 x1 fep x2 -> [x2] [x1] [x2] [x1] [x2] [x1] [x2] [x1] 
 x1 tufa -> [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 