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

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

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