*SUPPORT*
IN: dax lug wif OUT: PINK RED
IN: wif blicket fep OUT: PURPLE PINK
IN: tufa wif OUT: GREEN PINK
IN: wif wif OUT: PINK PINK
IN: dax OUT: RED
IN: fep kiki kiki OUT: PURPLE PURPLE PURPLE PURPLE
IN: fep OUT: PURPLE
IN: fep tufa tufa blicket fep kiki OUT: PURPLE GREEN PURPLE GREEN PURPLE GREEN PURPLE GREEN
IN: fep blicket wif OUT: PINK PURPLE
IN: fep fep blicket fep OUT: PURPLE PURPLE PURPLE
IN: tufa blicket dax OUT: RED GREEN
IN: tufa blicket fep OUT: PURPLE GREEN
IN: wif blicket dax OUT: RED PINK
IN: fep blicket dax OUT: RED PURPLE

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

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