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

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

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