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

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

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