Generate a sentence with the given entities and relation.
Relation: sibling
Head Entity: William; Tail Entity: Alice
Sentence: His family met William Thackeray and Charles Dickens on their American tours , and James even remembered Thackeray mock - scolding his sister Alice for her crinoline dress : " Crinoline ?
Relation: sibling
Head Entity1: ; Tail Entity2:
Sentence: