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

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

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