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

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

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