*SUPPORT*
IN: blicket kiki wif dax wif OUT: RED GREEN RED RED GREEN
IN: wif wif OUT: RED RED
IN: wif blicket OUT: RED GREEN
IN: blicket blicket kiki blicket OUT: GREEN GREEN GREEN GREEN GREEN GREEN
IN: blicket wif OUT: GREEN RED
IN: wif dax gazzer OUT: PURPLE RED
IN: wif gazzer kiki blicket OUT: RED PURPLE GREEN GREEN RED PURPLE
IN: tufa OUT: BLUE
IN: blicket OUT: GREEN
IN: gazzer blicket OUT: PURPLE GREEN
IN: blicket dax tufa OUT: BLUE GREEN
IN: tufa tufa OUT: BLUE BLUE
IN: gazzer OUT: PURPLE
IN: gazzer dax blicket OUT: GREEN PURPLE

*QUERY*
IN: wif fep gazzer dax wif OUT: RED PURPLE RED
IN: wif dax blicket dax gazzer OUT: PURPLE GREEN RED
IN: tufa wif wif dax wif OUT: RED BLUE RED RED
IN: tufa dax gazzer OUT: PURPLE BLUE
IN: tufa dax blicket OUT: GREEN BLUE
IN: wif tufa tufa OUT: RED BLUE BLUE
IN: tufa wif OUT: BLUE RED
IN: tufa gazzer gazzer dax gazzer OUT: PURPLE BLUE PURPLE PURPLE
IN: wif OUT: RED
IN: blicket tufa blicket tufa dax gazzer dax gazzer OUT: PURPLE PURPLE GREEN BLUE GREEN BLUE

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