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

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

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