Task: Question Generation
Input (English):  Gregory Lunn and Mrs Juno are in love, having met during a sea voyage. On a sofa in a hotel where both are staying, they discuss their feelings. They are both already married, so they decide they must part, but are unable to do so. They then recognise the voices of their respective spouses, apparently staying together at the same hotel. They leave in confusion. Mrs Lunn and Mr. Sibthorpe Juno enter and sit together on the same sofa that the other pair have just left. Sibthorpe says he is in love with Mrs Lunn, but she says she is only mildly attracted to him. Sibthorpe wants her to either accept or reject him outright. Her willingness to merely have an affair disturbs him. Gregory and Mrs. Juno re-enter and both couples reveal their conflicting feelings. They all find they have differet views about the situation. Gregory feels that there is a morally unacceptable contradiction between his desires and his honour. Sibthorpe, in contrast, says that such mixed feelings are fine, as long as one acts according to moral principles. Mrs Lunn believes that moral rules are silly. She thinks that as long as everyone gets the best they can out of the situation, that's all that matters. She's quite happy for Mrs Juno to have her husband for a while, and to return to compliment by enjoying her affair with Sibthorpe. Sibthorpe says that this is justifying polygamy. Mrs Lunn says she intends to continue the affair with Sibthorpe, because she enjoys it. Mrs Juno likewise refuses to stop seeing Gregory, because she enjoys being adored by him. So they agree to leave things as they are.
Output (English): Who did Gregory fall in love with during a sea voyage?