Please help me safely extract nested expression values from the `System Platform` object.

To ensure absolute correctness of the API and prevent `NullPointerException`s when navigating through deep relationships, please strictly use the `E.()` facade.

### Standard Safe Expression Example (Reference)

```java
import io.teaql.core.Context;
import com.yourcompany.domain.E;
import com.yourcompany.domain.Platform;

public class PlatformExpressionService {

    public void expressionExample(Platform entity) {
        // [BEST PRACTICE]: Use E facade to safely navigate relationships without NPEs.
        // E.(entity).getXXX().getYYY().eval() returns an Optional or handles nulls gracefully.

    }
}
```

### Your Task
Please completely imitate the framework, imports, and syntax features of the above code to extract the required nested fields from `System Platform` based on my specific business needs. Please output the Java source code directly.