Complex sentence: One example is the "low wire entanglement", which consists of irregularly placed stakes that have been driven into the ground with only some 15 cm (six inches) showing; the barbed wire is then wrapped and tightened on to these.
Split into simpler sentences: One example is "low wire entanglement", which consists of irregularly placed stakes that have been driven into the ground with only some 15 cm (six inches) showing. The barbed wire is then wrapped and tightened on to these.