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

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

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