The summary of the text is:
- The text is a transcript of a class about understanding and interpreting texts in Portuguese.
- The teacher explains the difference between understanding (staying within the text) and interpreting (going beyond the text) and the grammatical and semantic elements that are involved in each process.
- The teacher gives examples of anaphora and cataphora, which are words or expressions that refer to previous or subsequent terms in the text, and how they affect the meaning and argumentation of the text.
- The teacher also gives tips on how to read and underline the important words in each paragraph, and how to identify if a question is about understanding or interpreting the text.
- The teacher repeats a simple phrase to help the students remember the relationship between understanding and interpreting: "To understand, in the text. To interpret, from the text."
Here are the key facts extracted from the text:
1. The Korean nuclear fusion reactor KSTAR achieved 100 million°C for 30 seconds.
2. This temperature is nearly seven times hotter than the core of the Sun.
3. The core of the Sun has a temperature of close to 15.7 million Kelvin.
4. The surface temperature of the Sun is approximately 5800 K.
5. The KSTAR experiment is a significant step in nuclear fusion research.
6. Achieving a net energy gain was a milestone in this experiment.
Please note that these are simplified statements and the full context can be found in the detailed text provided.