Anchor: In backfilling, the evaluator might call the author, visit the author to review the original data, or contact others who were knowledgeable about the design decisions in order to get adequate information on instance selection.
Entailed: The evaluator may contact the author or others who are knowledgeable in the area i order to get adequate information.
Contradiction: It is not true that an evaluator may visit the author to review the original data.
Contradiction: she still travels a lot, and visits her children all over the united states
Contradiction: In 2000, GDP was slightly higher than GNP and the denominator had very little effect on calculating savings as a share of the economy. 
Contradiction: Only one language.
Contradiction: It is possible to remove the ones that you really want to participate in.