*SUPPORT*
IN: blicket blicket wif kiki wif OUT: RED RED PINK PINK
IN: dax fep OUT: PURPLE PURPLE
IN: blicket fep OUT: RED RED
IN: zup tufa dax OUT: GREEN PURPLE
IN: zup zup tufa dax OUT: GREEN GREEN PURPLE
IN: wif OUT: PINK
IN: dax kiki zup OUT: PURPLE GREEN
IN: wif fep OUT: PINK PINK
IN: wif tufa zup kiki wif OUT: PINK GREEN PINK
IN: zup OUT: GREEN
IN: dax kiki wif OUT: PURPLE PINK
IN: zup wif OUT: GREEN PINK
IN: wif kiki wif OUT: PINK PINK
IN: blicket zup wif zup tufa wif OUT: RED GREEN PINK GREEN PINK

*QUERY*
IN: dax wif kiki dax OUT: PURPLE PINK PURPLE
IN: zup fep OUT: GREEN GREEN
IN: dax tufa dax OUT: PURPLE PURPLE
IN: wif tufa zup OUT: PINK GREEN
IN: dax kiki wif kiki wif kiki wif OUT: PURPLE PINK PINK PINK
IN: dax OUT: PURPLE
IN: zup wif tufa zup kiki dax OUT: GREEN PINK GREEN PURPLE
IN: dax blicket fep OUT: PURPLE RED RED
IN: zup blicket tufa zup OUT: GREEN RED GREEN
IN: wif tufa dax OUT: PINK PURPLE

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