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

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

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