0, 107 S.Ct. 437, 93 L.Ed.2d 386.    The testimony of various witnesses at trial, who were involved in the operation of receiving and selling drugs, would readily lead a reasonable jury to conclude that more than five kilograms of cocaine was involved.  The total quantity supported by the testimony is approximately 5,796 grams of cocaine.  (There are one thousand grams to a kilogram).  Accordingly, we decline to reverse on this point.


10
Brown and Porter also argue that there is insufficient evidence to show a single conspiracy.  They contend that two conspiracies were shown, one to transfer cocaine from Price in New York to Douglas in Dallas, and a second for the purpose of distributing the cocaine in Dallas.  Appellants claim that distinct amounts of cocaine can be attributed to each conspiracy, thus decreasing the amount of cocaine involved in the conspiracy with which the appellants were charged in the indictment.  Appellants also claim that a material variance between the indictment and the proof of the conspiracy requires reversal.


11
A reversal in this case would require two findings, "(1) the evidence at the trial actually proved two separate conspiracies and (2) the variance affected 'the substantial rights' of the appellants."    United States v. Winship, 724 F.2d 1116, 1122 (5th Cir.1984) (citations omitted).  The first question, is one for the jury.  In this case the jury was instructed as follows:


12
A 'conspiracy' is an agreement by two or more persons to do something illegal.


13
You should first determine whether or not the evidence established the existence of the single conspiracy alleged in the indictment.  Proof of several different conspiracies does not establish this single conspiracy--unless one of the conspiracies proven is the conspiracy charged in the indictment.


14
Record Vol. 2 at 106.  This Court makes five inquiries to determine whether the record establishes one or more conspiracies.  These are known as the Marable factors:  "(1) time, (2) persons acting as co-conspirators,