*SUPPORT*
IN: wif fep blicket OUT: PINK RED
IN: tufa kiki blicket OUT: RED GREEN
IN: wif fep blicket gazzer OUT: PINK RED PINK RED PINK RED PINK RED
IN: wif fep wif OUT: PINK PINK
IN: wif fep tufa OUT: PINK GREEN
IN: dax OUT: YELLOW
IN: wif kiki wif OUT: PINK PINK
IN: tufa blicket OUT: GREEN RED
IN: tufa OUT: GREEN
IN: wif OUT: PINK
IN: wif wif kiki dax OUT: PINK YELLOW PINK
IN: wif blicket OUT: PINK RED
IN: dax dax kiki wif fep wif OUT: YELLOW PINK PINK YELLOW
IN: wif kiki blicket fep blicket OUT: RED RED PINK

*QUERY*
IN: blicket fep wif OUT: RED PINK
IN: wif kiki blicket blicket OUT: RED RED PINK
IN: blicket fep dax OUT: RED YELLOW
IN: blicket fep dax gazzer OUT: RED YELLOW RED YELLOW RED YELLOW RED YELLOW
IN: dax dax gazzer OUT: YELLOW YELLOW YELLOW YELLOW YELLOW YELLOW YELLOW YELLOW
IN: blicket OUT: RED
IN: tufa kiki wif fep wif OUT: PINK PINK GREEN
IN: dax kiki dax kiki blicket gazzer OUT: RED RED RED RED YELLOW YELLOW
IN: tufa gazzer OUT: GREEN GREEN GREEN GREEN
IN: wif wif kiki wif OUT: PINK PINK PINK

*GRAMMAR*
tufa -> GREEN 
 blicket -> RED 
 wif -> PINK 
 dax -> YELLOW 
 u1 fep u2 -> [u1] [u2] 
 u1 kiki x1 -> [x1] [u1] 
 x1 gazzer -> [x1] [x1] [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 