Task: Question Answering
Input (English): Question: What WISC IV tests are part of the perceptual reasoning index ?: 
 Options:  <1> Search for symbols, cubes and digits. <2> Matrices, cubes and concepts. <3> Search for symbols, letters and numbers, and concepts. <4> Matrices, keys and concepts. <5> Cubes, letters and numbers, and concepts.
Output (English): 2