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

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

*GRAMMAR*
lug -> RED 
 zup -> BLUE 
 tufa -> GREEN 
 fep -> YELLOW 
 u1 dax u2 -> [u2] [u2] [u1] 
 x1 wif u1 -> [x1] [u1] [x1] 
 x1 blicket x2 -> [x2] [x2] [x1] [x2] 
 u1 x1 -> [u1] [x1] 
 