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

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

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