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

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

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