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

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

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