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

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

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