*SUPPORT*
IN: zup dax kiki blicket zup OUT: BLUE GREEN RED BLUE
IN: dax wif zup zup gazzer blicket OUT: GREEN YELLOW BLUE BLUE RED
IN: wif gazzer zup OUT: YELLOW BLUE
IN: blicket gazzer dax OUT: RED GREEN
IN: zup tufa OUT: BLUE BLUE BLUE
IN: zup gazzer wif OUT: BLUE YELLOW
IN: blicket tufa kiki zup wif gazzer wif OUT: RED RED RED BLUE YELLOW YELLOW
IN: dax tufa kiki wif blicket gazzer wif OUT: GREEN GREEN GREEN YELLOW RED YELLOW
IN: zup tufa kiki zup tufa OUT: BLUE BLUE BLUE BLUE BLUE BLUE
IN: dax blicket tufa kiki blicket dax OUT: GREEN RED RED RED RED GREEN
IN: wif zup tufa kiki dax tufa kiki wif OUT: YELLOW BLUE BLUE BLUE GREEN GREEN GREEN YELLOW
IN: wif blicket OUT: YELLOW RED
IN: dax blicket wif OUT: GREEN RED YELLOW
IN: blicket gazzer wif OUT: RED YELLOW

*QUERY*
IN: wif gazzer wif OUT: YELLOW YELLOW
IN: blicket zup tufa OUT: RED BLUE BLUE BLUE
IN: blicket OUT: RED
IN: blicket gazzer zup OUT: RED BLUE
IN: zup kiki wif gazzer blicket kiki zup tufa OUT: BLUE YELLOW RED BLUE BLUE BLUE
IN: zup kiki dax gazzer zup OUT: BLUE GREEN BLUE
IN: dax tufa OUT: GREEN GREEN GREEN
IN: wif kiki dax kiki blicket wif OUT: YELLOW GREEN RED YELLOW
IN: blicket zup gazzer zup OUT: RED BLUE BLUE
IN: blicket wif gazzer wif kiki wif OUT: RED YELLOW YELLOW YELLOW

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