*SUPPORT*
IN: dax fep dax lug wif dax fep wif OUT: BLUE BLUE BLUE BLUE RED RED BLUE
IN: wif fep dax OUT: BLUE RED
IN: wif fep dax lug wif OUT: BLUE RED BLUE RED RED
IN: gazzer fep gazzer OUT: GREEN GREEN
IN: wif blicket fep blicket OUT: RED PINK PINK
IN: blicket fep wif OUT: RED PINK
IN: wif lug gazzer lug wif fep gazzer OUT: RED RED GREEN RED RED GREEN GREEN RED
IN: dax gazzer kiki gazzer OUT: BLUE GREEN GREEN GREEN GREEN
IN: blicket fep gazzer OUT: GREEN PINK
IN: dax wif kiki dax fep gazzer OUT: BLUE GREEN BLUE GREEN BLUE RED RED
IN: dax wif OUT: BLUE RED
IN: gazzer fep wif OUT: RED GREEN
IN: gazzer fep blicket OUT: PINK GREEN
IN: gazzer wif OUT: GREEN RED

*QUERY*
IN: blicket fep blicket OUT: PINK PINK
IN: wif wif fep wif OUT: RED RED RED
IN: blicket dax fep blicket OUT: PINK PINK BLUE
IN: gazzer lug gazzer OUT: GREEN GREEN GREEN
IN: dax lug blicket OUT: BLUE BLUE PINK
IN: blicket kiki blicket OUT: PINK PINK PINK PINK
IN: wif fep gazzer OUT: GREEN RED
IN: dax fep blicket OUT: PINK BLUE
IN: wif gazzer OUT: RED GREEN
IN: wif OUT: RED

*GRAMMAR*
wif -> RED 
 gazzer -> GREEN 
 blicket -> PINK 
 dax -> BLUE 
 u1 fep u2 -> [u2] [u1] 
 u1 kiki x1 -> [x1] [x1] [u1] [u1] 
 x1 lug x2 -> [x1] [x1] [x2] 
 u1 x1 -> [u1] [x1] 
 