+-\caption{Binding energies of combinations of a C$_{\text{s}}$ and a
+ Si$_{\text{i}}$ DB with respect to the separation distance. The
+ binding energies of the defect pairs are well approximated by a
+ Lennard-Jones 6-12 potential, which is used for curve fitting.}
+
++\caption{Binding energies of combinations of a C$_{\text{s}}$ and a
+ Si$_{\text{i}}$ DB with respect to the separation distance.}
+
+-The interaction of the defects is well approximated by a
+ Lennard-Jones 6-12 potential, which was used for curve fitting.
+
+-The binding energy quickly drops to zero.
+
+-The Lennard-Jones fit estimates almost zero interaction already at
+ \unit[0.6]{nm}, indicating a low interaction capture radius of the
+ defect pair.
+
++As can be seen, the interaction strength, i.e. the absolute value of
+ the binding energy, quickly drops to zero with increasing separation
+ distance.
+
++Almost zero interaction may be assumed already at distances about
+ \unit[0.5-0.6]{nm}, indicating a low interaction capture radius of the
+ defect pair.
+
+
+
+--------------- Response to recommendations ----------------
+
+Ref 1:
+
+a)
+
+Choosing a 216 atom supercell constitutes a tradeoff, of course.
+However, it is considered the optimal choice with respect to both,
+computing time and accuracy of the results.
+
+The convergence of the formation energies of single defects with
+respect to the size of the supercell is ensured. For this reason, they
+are referred to as single isolated defects.
+
+It is not our purpose to separate defects by a large distance in order
+to approximate the situation of isolated defects. However, we find
+that for increasing defect distance configurations appear, which
+converge to the energetics of two isolated defects. This is indicated
+by the (absolute value of the) binding energy, which is approaching
+zero with increasing distance. From this, we conclude a decrease in
+interaction, which is already observable for defect separation
+distances accessible in our simulations. This is stated now more
+clearly in section II of the revised manuscript. (-> Change 6)
+
+Nevertheless, the focus is on closely neighbored, interacting defects
+(for which an interaction with their own image is, therefore, supposed
+to be negligible, too). At no time, our aim was to investigate single
+isolated defect structures and their properties by increasing the
+separation distance of two defects belonging to a a defect
+combination.
+
+A note is added to let the reader know that convergence with respect
+to the system size is ensured. (-> Change 2)