QUESTION $2$

Read the following arguments, and then identify all the sentences that fulfill the specific roles listed below: $$

Have aliens from space really landed here on Earth during the last $100$ years?

Instead, could it be a topic used by tabloids to sell papers? $$

Information from the U$.$S$.$ government's report, Project Blue Book, indicates that there is no evidence to support that sightings categorized as unidentified were extraterrestrial vehicles.

However, one former U$.$S$.$ senator has suggested a different opinion indicative of a possible cover$-$up$.$

In fact, agencies such as the National UFO Reporting Center continue to log UFO sighting each month while various polls support the belief that UFOs exist. $$

For example, video coverage of aircraft labeled as drones may have been mislabeled. $$

Yes, everyone, UFOs from outer space are real. $$

They are as real as self$-$driving automobiles.