What is an oleles? Any [cluster] that has neither shoulder nor pendant. If it has either shoulder or pendant, it belongs to the owner; if there is a doubt, it belongs to the poor.  An oleles on a joint —- if it is cut off together with the cluster, it belongs to the owner; but if not, it belongs to the poor.  A single grape —- R' Yehudah says: [It is considered] a cluster; but the Sages say: [It is considered] an oleles.