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

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

*GRAMMAR*
wif -> YELLOW 
 fep -> RED 
 lug -> BLUE 
 dax -> GREEN 
 u1 tufa u2 -> [u2] [u2] [u2] [u2] [u2] [u2] [u1] [u2] 
 x1 zup -> [x1] [x1] 
 u1 blicket x1 -> [x1] [u1] 
 u1 x1 -> [u1] [x1] 
 