BUR #34211 is pending approval.
mass update favgroup:38404 -> semi_trailer
create implication semi_trailer -> trailer
remove implication lowboy_trailer -> trailer
create implication lowboy_trailer -> semi_trailer
It is a large trailer without a front axle, it is towed by a semi truck. Since the lowboy trailer is a subset of this trailer, I decided to move the implication to this tag as well.