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

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

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