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

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

*GRAMMAR*
wif -> PURPLE 
 gazzer -> GREEN 
 dax -> PINK 
 lug -> BLUE 
 u1 tufa -> [u1] [u1] 
 u1 fep u2 -> [u1] [u1] [u2] 
 u1 zup x1 -> [u1] [x1] 
 u1 x1 -> [u1] [x1] 
 