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

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

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