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 ## Background
 
-FTC robots have many ways to autonomously navigate the game field.  This tutorial introduces Vuforia, a software tool that can use camera images to determine the robot’s location on the field.  A [separate tutorial](TensorFlow-for-Blocks-.) describes TensorFlow Lite, a tool that supplements Vuforia to identify and track certain game elements as 3D objects.
+FTC robots have many ways to autonomously navigate the game field.  This tutorial introduces Vuforia, a software tool that can use camera images to determine the robot’s location on the field.  A [separate tutorial](TensorFlow-for-Blocks) describes TensorFlow Lite, a tool that supplements Vuforia to identify and track certain game elements as 3D objects.
 
 These two tools combine several high-impact technologies: vision processing, machine learning, and autonomous navigation.  Awareness of this software can spark further interest and exploration by FTC students as they prepare for future studies and careers in high technology.