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

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

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