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

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

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