Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Pictorial depiction of the subcategory structure for Experiment 2. There is a clear boundary between the A- and -B contexts for Subcategory 1 (X1 and X2) versus Subcategory 2 (X3 and X4), except for the single boundary-crossing string A4X1B4.
