 is not driven by data. Day five is the critical one. You've got your approach type. So, I've already introduced this, but the justification for why you want to create a approach type is exactly that. You can talk about these things, but until you've got something you can actually put in front of people and start, ychydig i gael i'r ddesgu gyda'r dŵr rhai, mae'n rhaid i'r ddweud y dŵr i'r dŵr o'r dŵr. A dyna'n mynd i'n ffordd yno, maeth yw'r ddweud y 4 ymgyrchu, mae'n ddweud yna ymgyrch yn ymgyrch o'r dŵr. A dyna'n gweithio'n hyn o'r dŵr.