Schematic representation of the classes to which the successive FPs belonged to in the process of iterative learning. Each circle represents a step in the iterative learning process. The TCA cycle genes (at the center) intersect the classes that are represented in the innermost circle. A solid line connecting two classes indicates that the two classes share at least one member. If a new iteration yields one or more false positives, the corresponding circle will contain all the functional classes that these false positives belong to (except for the classes already represented at inner circles), linked by lines to all the classes in the inner circles with which they have nonnull intersection.
