Read the text and determine if the sentence is true:

A federal appellate court in Brazil on Dec. 10, 2018, revoked a recent injunction that blocked any imminent agreement for the negotiated tie-up between Brazilian aircraft maker Embraer and US-based Boeing. EFE/File A federal appellate court in Brazil on Monday revoked an injunction granted last week that blocked any imminent agreement for the negotiated tie-up between Brazilian aircraft maker Embraer and US-based Boeing. The measure was revoked by an appeals panel in Sao Paulo, Embraer said in a statement to its stockholders.

Sentence: The decision was handed down after years in litigation.
It's impossible to say