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

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

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