There was usually only one research investigator, and the data consisted of descriptions, observations, impressions, unstructured interviews, and existing materials gathered at the site that were organized intuitively and informally.
There is typically only a single research investigator.
There are plenty of research investigators that investigate data.
The Tourist Information Office is located on Princes Street.
A child is outside playing outside.
A woman is taking a boat ride.
Jasper Becker wrote Hungry Mao's Secret Famine.
Louis XIV was able to make his own conclusions from Mazarin's careful coaching.
An old man sits on a bench with a fishing pole.