*SUPPORT*
IN: dax tufa dax OUT: PURPLE PURPLE
IN: wif OUT: PINK
IN: dax gazzer gazzer OUT: PURPLE PURPLE PURPLE PURPLE
IN: fep kiki dax gazzer gazzer OUT: BLUE PURPLE BLUE PURPLE BLUE PURPLE BLUE PURPLE
IN: fep kiki dax OUT: BLUE PURPLE
IN: wif gazzer OUT: PINK PINK
IN: lug kiki wif OUT: YELLOW PINK
IN: wif kiki fep OUT: PINK BLUE
IN: wif tufa dax OUT: PURPLE PINK
IN: fep OUT: BLUE
IN: wif dax OUT: PINK PURPLE
IN: dax lug tufa lug gazzer OUT: PURPLE YELLOW YELLOW PURPLE YELLOW YELLOW
IN: lug kiki fep OUT: YELLOW BLUE
IN: fep lug tufa wif OUT: BLUE PINK YELLOW

*QUERY*
IN: lug tufa fep OUT: BLUE YELLOW
IN: dax gazzer OUT: PURPLE PURPLE
IN: dax tufa fep OUT: BLUE PURPLE
IN: wif lug fep tufa dax gazzer OUT: PINK YELLOW PURPLE BLUE PINK YELLOW PURPLE BLUE
IN: wif kiki lug OUT: PINK YELLOW
IN: lug wif tufa wif OUT: YELLOW PINK PINK
IN: lug OUT: YELLOW
IN: lug gazzer OUT: YELLOW YELLOW
IN: dax OUT: PURPLE
IN: dax wif OUT: PURPLE PINK

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