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

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

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