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

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

*GRAMMAR*
dax -> RED 
 fep -> GREEN 
 tufa -> PURPLE 
 wif -> PINK 
 u1 blicket u2 -> [u2] [u1] [u2] 
 u1 zup -> [u1] [u1] 
 x1 lug x2 -> [x1] [x2] 
 u1 x1 -> [u1] [x1] 
 