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

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

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