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

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

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