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

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

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