Берта представляла, как Сидней прос

Берта представляла, как Сидней просиживал часами в своей химической лаборатории, пока, наконец, не вывел эту формулу.

Results (English) 1:

Bertha represented as Sydney stayed for hours in his chemistry lab, until finally, not brought up this formula.

Results (English) 2:

Burt represented as Sydney would sit for hours in his chemistry lab, until finally gave this formula.

Results (English) 3:

Berta represented, such as the Sydney chestnut tree clock in its chemical laboratory, until, finally, do not put this formula.