( ( This ( ( works here ) ( because ( we ( ( do not ) ( ( ( ( replicate ( the formula ) ) ( to ( another row ) ) ) , ) hence ) ) ) ) ) ) ( there ( ( ( is ( ( no change ) ( in ( ( the ( row reference ) ) ( in ( the ( replicated formulas ) ) ) ) ) ) ) anyway ) . ) ) )
(ROOT (S (S (NP (DT This)) (VP (VBZ works) (ADVP (RB here)) (SBAR (IN because) (S (NP (PRP we)) (VP (VBP do) (RB not) (VP (VB replicate) (NP (DT the) (NN formula)) (PP (TO to) (NP (DT another) (NN row))) (, ,) (ADVP (RB hence)))))))) (NP (EX there)) (VP (VBZ is) (NP (NP (DT no) (NN change)) (PP (IN in) (NP (NP (DT the) (NN row) (NN reference)) (PP (IN in) (NP (DT the) (JJ replicated) (NNS formulas)))))) (ADVP (RB anyway))) (. .)))
This works here because we do not replicate the formula to another row, hence there is no change in the row reference in the replicated formulas anyway.
(ROOT (S (S (VP (TO To) (VP (VB confirm) (NP (NP (DT the) (NN work)) (PP (IN of) (NP (DT another) (NN scientist))))))) (, ,) (NP (DT a) (NN scientist)) (VP (MD might) (VP (VB replicate) (NP (PRP$ their) (NN work)))) (. .)))