Question:
Roadside bomb 'kills eight Afghan soldiers'

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:
Afghanistan: suicide bomber kills eight in military bus blast

Question:
A man and a woman laughing.

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:
A man and a woman are smiling.

Question:
A tiger is walking around.

What is a sentence that would be (on a scale from 0 to 5) a 2 out of 5 in terms of textual similarity to the above sentence?

Answer:
A tiger cub is making a sound.