Gst query

Goods definition include actionable claim .But sec7(2)(a) read with schedule iii negative list ,cover "actionable claim ,other than lottery,betting,gambling".

Can anybody explain above provision?If actionable claim are counted as goods then how can come under negative list and if actionable claim are in negative list then how can it include in the definition of goods?

In earlier taxation system ,negative list  means services/goods are not taxable at all.