*SUPPORT*
IN: wif tufa fep OUT: BLUE RED BLUE RED
IN: tufa OUT: RED
IN: zup dax OUT: PURPLE PURPLE PURPLE PURPLE
IN: tufa lug wif lug wif OUT: RED BLUE BLUE
IN: wif zup dax OUT: BLUE PURPLE PURPLE PURPLE PURPLE
IN: tufa dax lug tufa OUT: RED RED RED RED RED
IN: wif fep OUT: BLUE BLUE
IN: gazzer OUT: GREEN
IN: zup wif dax lug zup lug tufa OUT: PURPLE BLUE BLUE BLUE BLUE PURPLE RED
IN: gazzer gazzer OUT: GREEN GREEN
IN: wif OUT: BLUE
IN: tufa dax fep OUT: RED RED RED RED RED RED RED RED
IN: zup dax fep OUT: PURPLE PURPLE PURPLE PURPLE PURPLE PURPLE PURPLE PURPLE
IN: wif lug tufa fep OUT: BLUE RED BLUE RED

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

*GRAMMAR*
tufa -> RED 
 zup -> PURPLE 
 wif -> BLUE 
 gazzer -> GREEN 
 x1 fep -> [x1] [x1] 
 u1 dax -> [u1] [u1] [u1] [u1] 
 x1 lug u1 -> [x1] [u1] 
 u1 x1 -> [u1] [x1] 
 