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

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

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