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

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

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