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

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

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