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

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

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