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

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

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