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

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

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