<Tr> <Td> 2 Sensory </Td> <Td> 0 </Td> <Td> </Td> <Td> - 1 </Td> </Tr> <Tr> <Td> 3 Circular sensory motor </Td> <Td> </Td> <Td> a Sensorimotor </Td> <Td> 0 / - 1 </Td> </Tr> <Tr> <Td> 4 Sensory motor </Td> <Td> </Td> <Td> b Sensorimotor </Td> <Td> 0 </Td> </Tr> <Tr> <Td> 5 Nominal </Td> <Td> </Td> <Td> Ia Preoperational </Td> <Td> 0 / 1 </Td> </Tr>

Thinking is action is characteristic of which piagtian stage