Perform the pairwise-disjointness test for each non-terminal. Is this grammar dis-joint? why or why not?.

Podaj przykłady sytuacji w których pisze się ogłoszenie

1. by a sculptora.ablative of agentb.ablative of means2. by a patrona.ablative of agentb.ablative of means3. by hammer and chisela.ablative of agentb.ablative of means4. by millions of art loversa.ablative of agentb.ablative of means5. by berninia.ablative of agentb.ablative of means

The invention of photography was initially important because