Complex sentence: Following the assassination attempt, Wallace was visited at the hospital by Democratic Congresswoman and presidential primary rival Shirley Chisholm, a representative from Bedford-Stuyvesant, Brooklyn who at the time was the nation's only African-American female member of Congress.
Split into simpler sentences: Following the assassination attempt, Wallace was visited at the hospital by Democratic Congresswoman and presidential primary rival Shirley Chisholm, a representative from Bedford-Stuyvesant, Brooklyn. At the time, she was the nation's only African-American female member of Congress.