# Data Preparation
def combine_attributes(row):
    combined = f"{row['company']} {row['sector']} "

    # Add reports information
    for report in row["reports"]:
        combined += f"{report['year']} {report['title']} {report['author']} {report['content']} "

    # Add recent news information
    for news in row["recent_news"]:
        combined += f"{news['headline']} {news['summary']} "

    return combined.strip()
```

```python