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

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

*GRAMMAR*
blicket -> PINK 
 dax -> YELLOW 
 kiki -> GREEN 
 wif -> BLUE 
 u1 tufa u2 -> [u1] [u2] 
 u1 zup x1 -> [u1] [x1] 
 x1 fep x2 -> [x1] [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 