1.   Because it is often made of perishable materials, surviving objects tend to be recent, suggesting falsely that the art itself lacks a history.

2.   Both objects tend to be touched so often that their surfaces have been rubbed shiny.

3.   Objects at rest tend to stay at rest.

4.   Objects tend to be of the Mexican or Native American school.

5.   Objects in motion tend to stay in motion.

6.   That virtually ruled out the pickup theory, because studies of meteorites had shown that extraterrestrial objects tended to have unique isotopic signatures.

7.   Then, objects tend to explode around her.

8.   These joke objects tend to polarize.