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

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

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