What is the relationship between 'Lehman Brothers' and 'investment' in the context of the input sentence.
Options: stock exchange, industry, location of formation, owned by

NEW YORK (Reuters) - Morgan Stanley recommended investors buy Lehman Brothers LEH.N shares, setting a price target of $31, after the beleaguered investment banking firm's stock fell nearly 11 percent on Monday, owing to rumors that it would be bought out well below its current price.
industry