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

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

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