I was reading the ZMQ documentation and it's not immediately clear to me what each of these provides:

• zmqpubhashtx
• zmqpubhashblock
• zmqpubrawblock
• zmqpubrawtx
• zmqpubsequence

zmqpubhashblock and zmqpubrawblock seem obvious and are touched on later in the docs.

However zmqpubhashtx and zmqpubrawtx obviously provide transaction information, but to me it's a bit unclear as to what transactions are included. I'm assuming it's all transactions on the network?