rtokens: Among those seen as having an interest in buying in Missouri are Minneapolis-based First Bank System Inc. and Norwest Corp. , Ohio-based KeyCorp and Banc One Corp. , and First Chicago NBD Corp. in Illinois .
pos: NNP CC NNP VBD RB VB NN NNS VBG NN .
tokens: Mercantile and Commerce did not return phone calls seeking comment .
ltokens: " Now ... the most coveted bank out there is Mercantile , " Weber said .