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

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

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