In this task, you will be presented with a context from an academic paper and you have to write an answerable question based on the context. Your questions can be extractive, abstractive, or yes-no questions.

The Zurich Cognitive Language Processing Corpus (ZuCo) 2.0, including raw and preprocessed eye-tracking and electroencephalography (EEG) data of 18 subjects, as well as the recording and preprocessing scripts, is publicly available. It contains physiological data of each subject reading 739 English sentences from Wikipedia (see example in Figure FIGREF1). During the recording session, the participants read 739 sentences that were selected from the Wikipedia corpus provided by culotta2006integrating.
What kind of sentences were read?