References can be religious.Logical formLearned from635 sentences. References can be personal.Logical formLearned from631 sentences. A reference can be useful.Logical formLearned from630 sentences. A reference can be handy.Logical formLearned from630 sentences. References can be to a male.Logical formLearned from622 sentences. References can be bibliographical.Logical formLearned from611 sentences. A reference can be comprehensive.Logical formLearned from610 sentences. A reference can be to a female.Logical formLearned from559 sentences. Frames can be constituted-of-or-filled-with reference.Logical formLearned from549 sentences. A (transaction receipt) can be with a (transaction reference number).Logical formLearned from542 sentences. Points can be constituted-of-or-filled-with reference.Logical formLearned from527 sentences. References can be explicit.Logical formLearned from519 sentences. A reference may be found at an ent.Logical formLearned from513 sentences. References can be vague.Logical formLearned from506 sentences. A reference can be personal.Logical formLearned from487 sentences.