PART XVI—CONDITIONAL BEQUESTS. 113. Bequest upon impossible condition. A bequest upon an impossible condition is void. 114. Bequest upon illegal, etc. condition. A bequest upon a condition the fulfillment of which would be contrary to law or to morality is void. 115. Fulfillment of condition precedent to vesting of legacy. Where a will imposes a condition to be fulfilled before the legatee can take a vested interest in the thing bequeathed, the condition shall be considered to have been fulfilled if it has been substantially complied with. 116. Bequest to one person and, on failure of prior bequest, to another. Where there is a bequest to one person, and a bequest of the same thing to another, if the prior bequest shall fail, the second bequest shall take effect upon the failure of the prior bequest although the failure may not have occurred in the manner contemplated by the testator. 117. When second bequest not to take effect on failure of first. Where a will shows an intention that a second bequest shall take effect only in the event of the first bequest failing in a particular manner, the second bequest shall not take effect unless the prior bequest fails in that particular manner. 118. Bequest over, conditional upon happening of specified uncertain event. (1) A bequest may be made to any person with the condition superadded that, in case a specified uncertain event shall happen, the thing bequeathed shall go to another person, or that in case a specified uncertain event shall not happen, the thing bequeathed shall go over to another person. (2) In each case the ulterior bequest is subject to sections 107, 108, 109, 110, 111, 112, 113, 114, 116 and 117.