Problem: Does "Additionally, a "start codon", and three "stop codons" indicate the beginning and end of the protein coding region." answer the question "What indicates the beginning and end of the protein coding region?"

A: yes

Problem: Does "Some speculation exists that the Pechenegs drove off the Tivertsi and the Ulichs to the regions of the upper Dniester river in Bukovina." answer the question "What did the Pecheneg frequesntly do over the span of two centuries?"

A: no

Problem: Does "In 1967 the Eisenhowers donated the farm to the National Park Service." answer the question "Who did Eisenhower donate his farm to in 1967?"

A:
yes