Given an entity, a before event, an after event, and an attribute related to the entity, generate a sentence as output. Your sentence should show the changes in the attribute of the entity.
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Question: entity: light source
before: in shop
after: at home
attr: location

Answer: location of light source was in shop before and at home afterwards

Question: entity: the boards
before: separate
after: now placed together
attr: placement

Answer: placement of the boards was separate before and now placed together afterwards

Question: entity: touch screen
before: in unit
after: in hand
attr: location

Answer:
location of touch screen was in unit before and in hand afterwards