*SUPPORT*
IN: dax fep kiki OUT: PURPLE RED
IN: kiki fep dax OUT: RED PURPLE
IN: dax gazzer kiki fep dax OUT: RED RED PURPLE RED
IN: wif fep blicket tufa tufa OUT: GREEN BLUE GREEN BLUE GREEN BLUE GREEN BLUE
IN: wif OUT: BLUE
IN: dax fep dax tufa OUT: RED RED RED RED
IN: dax wif fep wif OUT: RED BLUE BLUE
IN: blicket fep wif tufa OUT: BLUE GREEN BLUE GREEN
IN: kiki OUT: PURPLE
IN: wif fep blicket OUT: GREEN BLUE
IN: dax blicket fep kiki gazzer wif wif OUT: RED PURPLE GREEN BLUE BLUE RED PURPLE GREEN
IN: dax wif blicket blicket OUT: RED BLUE GREEN GREEN
IN: dax fep kiki tufa OUT: PURPLE RED PURPLE RED
IN: kiki fep blicket OUT: GREEN PURPLE

*QUERY*
IN: kiki fep wif tufa tufa OUT: BLUE PURPLE BLUE PURPLE BLUE PURPLE BLUE PURPLE
IN: blicket fep wif OUT: BLUE GREEN
IN: blicket OUT: GREEN
IN: wif tufa OUT: BLUE BLUE
IN: wif fep kiki OUT: PURPLE BLUE
IN: blicket fep kiki gazzer wif OUT: PURPLE GREEN BLUE PURPLE GREEN
IN: kiki fep kiki OUT: PURPLE PURPLE
IN: dax OUT: RED
IN: dax blicket OUT: RED GREEN
IN: blicket tufa gazzer kiki dax fep kiki OUT: GREEN GREEN PURPLE PURPLE RED GREEN GREEN

*GRAMMAR*
dax -> RED 
 blicket -> GREEN 
 kiki -> PURPLE 
 wif -> BLUE 
 x1 gazzer x2 -> [x1] [x2] [x1] 
 u1 fep u2 -> [u2] [u1] 
 x1 tufa -> [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 