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

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

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