The dataset below presents a collection of syntactic strings, each annotated with a binary classification:
1: denotes a positive instance, while 0: marks a negative one. Each string is a space-separated sequence of discrete symbols. The set of examples terminates with a blank line.

exemplars

Your objective is to infer the classification of a novel string using only the observed patterns. Respond solely with either 1 or 0. No rationale or additional output is permitted.

string: test_string