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

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

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