*SUPPORT*
IN: kiki kiki wif fep wif OUT: GREEN GREEN PURPLE PURPLE PURPLE
IN: wif fep dax tufa OUT: BLUE PURPLE PURPLE BLUE PURPLE PURPLE
IN: wif wif kiki zup OUT: PURPLE PURPLE GREEN PURPLE PURPLE GREEN
IN: wif OUT: PURPLE
IN: dax OUT: BLUE
IN: kiki zup OUT: GREEN GREEN
IN: dax dax fep blicket OUT: BLUE YELLOW BLUE BLUE
IN: wif blicket zup zup OUT: PURPLE YELLOW PURPLE YELLOW PURPLE YELLOW PURPLE YELLOW
IN: kiki fep kiki tufa OUT: GREEN GREEN GREEN GREEN GREEN GREEN
IN: dax fep dax OUT: BLUE BLUE BLUE
IN: blicket fep dax tufa OUT: BLUE YELLOW YELLOW BLUE YELLOW YELLOW
IN: dax fep blicket zup OUT: YELLOW BLUE BLUE YELLOW BLUE BLUE
IN: dax tufa zup OUT: BLUE BLUE BLUE BLUE
IN: blicket fep kiki OUT: GREEN YELLOW YELLOW

*QUERY*
IN: wif zup tufa OUT: PURPLE PURPLE PURPLE PURPLE
IN: kiki fep dax OUT: BLUE GREEN GREEN
IN: kiki fep wif OUT: PURPLE GREEN GREEN
IN: dax tufa OUT: BLUE BLUE
IN: wif fep wif OUT: PURPLE PURPLE PURPLE
IN: wif fep kiki OUT: GREEN PURPLE PURPLE
IN: dax fep dax tufa OUT: BLUE BLUE BLUE BLUE BLUE BLUE
IN: wif fep dax OUT: BLUE PURPLE PURPLE
IN: blicket fep wif OUT: PURPLE YELLOW YELLOW
IN: kiki OUT: GREEN

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