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

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

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