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

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

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