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

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

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