Question:
To force a recall election of Davis, the valid signatures of 897,158 registered California voters must be turned in to election officials.

What is a sentence that would be (on a scale from 0 to 5) a 3 out of 5 in terms of textual similarity to the above sentence?

Answer:
The valid signatures of 897,158 registered California voters must be collected and turned in to county election officials by Sept. 2.

Question:
Japan defends dolphin hunts after criticism from US

What is a sentence that would be (on a scale from 0 to 5) a 5 out of 5 in terms of textual similarity to the above sentence?

Answer:
Japan defends dolphin hunt after US criticism

Question:
The ideology was built around violent expansion and race superiority.

What is a sentence that would be (on a scale from 0 to 5) a 4 out of 5 in terms of textual similarity to the above sentence?

Answer:
The ideology was built around violent expansion, so yes - VIOLENT expansion.