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

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

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