With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Apple Inc. became the first U.S company to be valued over $700 billion dollars in February 2015.
text_B: Foederatus -LRB- -LSB- ˌfɛdəˈreɪtəs -RSB- in English ; pl .. foederati -LSB- ˌfɛdəˈreɪtaɪ -RSB- -RRB- was any one of several outlying nations to which ancient Rome provided benefits in exchange for military assistance .. ancient Rome. ancient Rome. The term was also used , especially under the Roman Empire for groups of `` barbarian '' mercenaries of various sizes , who were typically allowed to settle within the Roman Empire .. Roman Empire. Roman Empire. barbarian. barbarian
not_related.