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

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

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