Based on someone's preceding message that the last 14 lines minus the last in the 3rd message are naming the planets, then I suggest that we are seeing the first vocabulary beyond mathematical symbols coming out of the message. Namely: 'xzx' = sun/star 'wyw' = small planetary object (asteroid, comet) 'zyz' = medium planetary object (moon) '1y1' = planet Furthermore, we have 'proper' names of '2', '797', '898', '323', '434', and '4y4'. (We have also said that '0' is a Tau-Cetian). Based on the above, I have a couple of possibilities: 1) The fact that 'wyw', 'zyz', and '1y1' all represent planetary bodies would seem to indicate that the symbol 'y' represents 'planetary body'. That is, we are dealing with a root-building language, similar to some Latin. Of course, there is not enough vocabulary to say this. 2) Whether the above is true or not, I believe that the symbols 'x','y','z','1','2','3','4','7','8', and '9' represent phonetic units in the Tau-Ceti language. So far we only have one and two-'syllable' words, but I won't be surprised to see more later. If these symbols are phonetic parts, then I also strongly suspect that the Tau-Cetis communicate via tones...why would a message try to transmit the actual words when information is just sufficient? If humans were to send a message out to space, how would we transmit our words? We couldn't, because it's not as simple as just writing it down. But if we used tones, then all we'd have to do is to transcribe the tones, which isn't that difficult. Anyway, just a few additional thoughts...