An argument drawn from inconvenience is of the greatest weight [is forcible] in law. Co. Litt. 66a, 97a, 1526, 25S6; Broom, Max. 184. If there be in any deed or instrument equivocal expressions, and great inconvenience must necessarily follow from one construction, it is strong to show that such construction is not according to the true intention of the grantor; but where there is no equivocal expression in the instrument, and the words used admit only of one meaning, arguments of inconvenience prove only want of foresight in the grantor. 3 Madd. 540; 7 Taunt. 496.