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

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

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