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

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

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