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

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

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