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

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

*GRAMMAR*
wif -> PINK 
 blicket -> YELLOW 
 zup -> RED 
 dax -> GREEN 
 x1 tufa x2 -> [x1] [x1] [x2] 
 u1 fep -> [u1] [u1] 
 u1 kiki u2 -> [u2] [u1] 
 u1 x1 -> [u1] [x1] 
 