*SUPPORT*
IN: tufa zup lug OUT: BLUE RED BLUE BLUE
IN: kiki wif OUT: PURPLE YELLOW
IN: wif zup tufa OUT: RED YELLOW RED RED
IN: kiki fep OUT: PURPLE PURPLE
IN: wif zup kiki OUT: PURPLE YELLOW PURPLE PURPLE
IN: lug zup tufa OUT: RED BLUE RED RED
IN: tufa lug zup wif OUT: RED YELLOW BLUE YELLOW YELLOW
IN: tufa zup tufa OUT: RED RED RED RED
IN: lug zup lug OUT: BLUE BLUE BLUE BLUE
IN: tufa OUT: RED
IN: lug lug kiki OUT: BLUE BLUE PURPLE
IN: lug dax OUT: BLUE BLUE BLUE
IN: wif fep dax OUT: YELLOW YELLOW YELLOW YELLOW YELLOW YELLOW
IN: wif lug zup tufa OUT: YELLOW RED BLUE RED RED

*QUERY*
IN: wif dax OUT: YELLOW YELLOW YELLOW
IN: wif OUT: YELLOW
IN: wif zup lug OUT: BLUE YELLOW BLUE BLUE
IN: lug zup kiki OUT: PURPLE BLUE PURPLE PURPLE
IN: lug fep OUT: BLUE BLUE
IN: lug OUT: BLUE
IN: tufa tufa fep OUT: RED RED RED
IN: tufa fep OUT: RED RED
IN: tufa lug dax OUT: RED BLUE RED BLUE RED BLUE
IN: wif fep OUT: YELLOW YELLOW

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