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

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

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