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

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

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