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

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

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