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

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

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