Assertion: vagrant | /r/HasProperty | tied to virtualbox
Facets:
value: originally
type: MANNER
Source sentences:
text: Vagrant was originally tied to VirtualBox, but version 1.1 added support for other virtualization software such as VMware and KVM, and for server environments like Amazon EC2.
text: Prior to Vagrant 1.1, Vagrant was tightly integrated and was tied to VirtualBox.