我正在尝试使用Python中的BeautifulSoup抓取各种站点。说我有以下html摘录：
<div class="member_biography">
<h3>Biography</h3>
<span class="sub_heading">District:</span> AnyState - At Large<br/>
<span class="sub_heading">Political Highlights:</span> AnyTown City Council, 19XX-XX<br/>
<span class="sub_heading">Born:</span> June X, 19XX; AnyTown, Calif.<br/>
<span class="sub_heading">Residence:</span> Some Town<br/>
<span class="sub_heading">Religion:</span> Episcopalian<br/>
<span class="sub_heading">Family:</span> Wife, Some Name; two children<br/>
<span class="sub_heading">Education:</span> Some State College, A.A. 19XX; Some Other State College, B.A. 19XX<br/>
<span class="sub_heading">Elected:</span> 19XX<br/>
</div>
我需要结果采用以下格式：
District: AnyState - At Large
Political Highlights: AnyTown City Council, 19XX-XX
Born: June X, 19XX; AnyTown, Calif.
Residence: Some Town
Religion: Episcopalian …