function processProperty(sPropertyPath, i) {
				var sProperty = oModel.getProperty(sObjectPath + "/" + sPropertyPath);

				if (typeof sProperty === "string") {
					aParts[i] = "[${" + sPropertyPath + "}===" + Basics.toJSON(sProperty) + "]";
					return true;
				}
				return false;
			}
Processes the property with the given path of the object at <code>sObjectPath</code>.
If it exists and is of type "string", the index at position <code>i</code> in
<code>aParts</code> is replaced by a query "[${propertyPath}==='propertyValue']".

@param {string} sPropertyPath the property path
@param {number} i the index in aParts
@returns {boolean} true if the index was replaced by a query