( ( These lengths ) ( ( are ( considered ( to ( be ( ( the ( ( top and ) base ) ) ( of ( ( a ( regular trapezoid ) ) ( with ( ( a height ) ( equal ( to ( ( the difference ) ( in ( ( the distance ) ( between ( the ( two points ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT These) (NNS lengths)) (VP (VBP are) (VP (VBN considered) (S (VP (TO to) (VP (VB be) (NP (NP (DT the) (NN top) (CC and) (NN base)) (PP (IN of) (NP (NP (DT a) (JJ regular) (NN trapezoid)) (PP (IN with) (NP (NP (DT a) (NN height)) (ADJP (JJ equal) (PP (TO to) (NP (NP (DT the) (NN difference)) (PP (IN in) (NP (NP (DT the) (NN distance)) (PP (IN between) (NP (DT the) (CD two) (NNS points)))))))))))))))))) (. .)))
These lengths are considered to be the top and base of a regular trapezoid with a height equal to the difference in the distance between the two points.
(ROOT (S (NP (NNP Distance)) (VP (VBZ is) (NP (NP (DT the) (NN term)) (PP (IN for) (NP (NP (DT the) (NN length)) (PP (IN of) (NP (NP (DT the) (NN route)) (PP (IN between) (NP (CD two) (NNS points))))))))) (. .)))