( ( The ( first ( seven experiments ) ) ) ( ( ( ( ( used ( control tubers ) ) ( not ( containing ( the ( foreign ( lectin genes ) ) ) ) ) ) and ) ( were ( concerned ( with ( ( ( the design ) ( of ( potato-based diets ) ) ) ( which ( both ( ( ( supported ( growth ( of ( the rats ) ) ) ) and ) ( met ( ( the ( animal ( welfare requirements ) ) ) ( of ( the ( Home Office ) ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (JJ first) (CD seven) (NNS experiments)) (VP (VP (VBD used) (NP (NN control) (NNS tubers)) (S (RB not) (VP (VBG containing) (NP (DT the) (JJ foreign) (NN lectin) (NNS genes))))) (CC and) (VP (VBD were) (VP (VBN concerned) (PP (IN with) (NP (NP (DT the) (NN design)) (PP (IN of) (NP (JJ potato-based) (NNS diets))) (SBAR (WHNP (WDT which)) (S (DT both) (VP (VP (VBD supported) (NP (NP (NN growth)) (PP (IN of) (NP (DT the) (NNS rats))))) (CC and) (VP (VBD met) (NP (NP (DT the) (NN animal) (NN welfare) (NNS requirements)) (PP (IN of) (NP (DT the) (NNP Home) (NNP Office))))))))))))) (. .)))
The first seven experiments used control tubers not containing the foreign lectin genes and were concerned with the design of potato-based diets which both supported growth of the rats and met the animal welfare requirements of the Home Office.
(ROOT (S (NP (NNP Animal) (NNS behaviors)) (VP (VBP are) (VP (VBN controlled) (PP (IN by) (NP (NP (DT both) (NNS genes) (CC and) (NNS experiences)) (PP (IN in) (NP (DT a) (VBN given) (NN envionment))))))) (. .)))