There is little political science now - what to do, except for tandem meditation? This often happens in the form "who is there, finally, who." Sometimes other words are added to the case. For example, a "public contract". Well, someone with someone. This is Pavlovsky, " tandem as a risk factor." Exactly about a public agreement plus tandem. Well, or about the tandem plus the contract. Or maybe not a plus, but a minus.