Spring is downloaded through maven. How is the pom file written?

novice to java,

see that part of the pom of a project looks like this:

<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-web</artifactId>
    <version>${springframework.version}</version>
</dependency>
<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-webmvc</artifactId>
    <version>${springframework.version}</version>
</dependency>
<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-context</artifactId>
    <version>${springframework.version}</version>
</dependency>
<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-core</artifactId>
    <version>${springframework.version}</version>
</dependency>

I wonder where I can query groupId and artifactId.

not found on the official website:
https://projects.spring.io/sp.

for the vast majority of module, for python, installation is provided.
http://django-import-export.r.

confused.