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

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

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