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

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

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