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

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

*GRAMMAR*
wif -> PURPLE 
 fep -> YELLOW 
 tufa -> BLUE 
 lug -> GREEN 
 x1 gazzer -> [x1] [x1] 
 x1 blicket -> [x1] [x1] [x1] 
 x1 dax x2 -> [x1] [x2] [x1] [x2] 
 u1 x1 -> [u1] [x1] 
 