1. This version of Hector Hammond is a xenobiology - professor , an old friend of Hal Jordan and the son of US senator Robert Hammond .
2. This version of Hector Hammond is a xenobiology professor , an old friend of Hal Jordan and the son of United States senator Robert Hammond .

Select your answer from the options. Are these two sentences paraphrases of each other?
Select from:
--no;
--yes;...I think the answer is
yes