With Margot was an "old photograph" I think she looked back a lot. And with the forest, there may have been a lot of color. To add a more definite answer, I'd need some more context.<span />
Knowledge is a person's understandings and skill, but to acknowledge means to accept or recognize something.
Boolean searching:
Most searches will return too many or too few records. It takes a long time to look at hundreds of records. By putting a little effort into constructing search strings (what you type into the search box) you can save a lot of time. The database can do a lot of work for you if you take the trouble to add a little sophistication to your search strings.
To do this with databases you need to know about the Boolean system. By the use of a few simple linking words, called operators, you can make your searches much more precise.
