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

*QUERY*
IN: fep OUT: GREEN
IN: dax fep blicket zup OUT: YELLOW GREEN RED GREEN
IN: dax blicket fep OUT: YELLOW GREEN YELLOW
IN: dax blicket dax OUT: YELLOW YELLOW YELLOW
IN: fep blicket zup OUT: GREEN RED GREEN
IN: zup OUT: RED
IN: dax OUT: YELLOW
IN: fep blicket wif OUT: GREEN PURPLE GREEN
IN: zup blicket zup OUT: RED RED RED
IN: dax wif blicket fep OUT: YELLOW PURPLE GREEN PURPLE

*GRAMMAR*
wif -> PURPLE 
 dax -> YELLOW 
 zup -> RED 
 fep -> GREEN 
 u1 kiki u2 -> [u2] [u1] [u2] 
 x1 tufa x2 -> [x2] [x1] [x2] 
 u1 blicket u2 -> [u1] [u2] [u1] 
 u1 x1 -> [u1] [x1] 
 