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

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

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