At Microsoft , Mr. Ballmer must adjust to being alone at the top , as his friend and longtime partner , Bill Gates , eases out of his company duties to work full time on philanthropy .
Bill Gates /business/person/company Microsoft
Microsoft /business/company/founders Bill Gates
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Bill Gates
PERSON
Microsoft
ORGANIZATION
/business/person/company
Microsoft
ORGANIZATION
Bill Gates
PERSON
/business/company/founders