*SUPPORT*
IN: tufa lug tufa zup fep tufa OUT: BLUE BLUE BLUE RED
IN: wif fep zup OUT: RED GREEN
IN: zup lug wif fep zup OUT: RED RED GREEN
IN: tufa blicket OUT: BLUE BLUE BLUE BLUE
IN: zup OUT: RED
IN: zup blicket OUT: RED RED RED RED
IN: kiki lug tufa kiki OUT: PURPLE BLUE PURPLE
IN: tufa OUT: BLUE
IN: zup lug tufa tufa fep zup OUT: RED BLUE RED BLUE
IN: wif fep wif OUT: GREEN GREEN
IN: tufa tufa tufa blicket OUT: BLUE BLUE BLUE BLUE BLUE BLUE
IN: kiki blicket OUT: PURPLE PURPLE PURPLE PURPLE
IN: tufa lug wif OUT: BLUE GREEN
IN: wif lug wif wif OUT: GREEN GREEN GREEN

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

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