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

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

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