Example of sub-network merging by PESCADOR using biological concepts. (A) Co-occurrence network created using 49 abstracts related to Alzheimer and Parkinson diseases (available at PESCADOR website). The network display has been filtered to show only co-occurrences of type 1 (highly confident). (B) Pushing the 'Show concepts' button adds concepts to the interaction network, which allows relating parts of the network to properties such as "AGGREGATION" (black arrow). (C) Filtered co-occurrences where the concept "AGGREGATION" has been found to connect terms related to Parkinson Disease (P25ALPHA, ALPHA-SYNUCLEIN, BETA-SYNUCLEIN) to those of Alzheimer Disease (BRI2 and ABETA).