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

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

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