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

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

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