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

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

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