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

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

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