Strength fields
Line strengths are a useful way of indicating the general status or quality of information that is represented by an item. For example, whether an association between two people is definite or speculative, or that an event frame contains information that is unconfirmed.
When you add or edit links, you can click a Strength field to select a strength value:
Confirmed
Unconfirmed
Tentative
Note: The default link strength is Confirmed but you can set a session default of your own so that every link you create or import during that session uses your value.