What is the term used to indicate consideration of when input should be added to a field

The truman doctrine was an american foreign policy whose stated purpose was to counter soviet geopolitical expansion during the cold war. it was announced to congress by president harry s. truman on march 12, 1947, and further developed on july 12, 1948, when he pledged to contain threats to greece and turkey

This is the most closely resembles the model. 

Where are the phrases