premise: A girl is working on some sort of lab experiment while another girl watches with a bored expression.
hypothesis: A girl is trying to reconstruct her dead puppy while her cousin watches.
explanation_1: The first sentence is rather generic, while the second sentence goes into more detail of a girl trying to reconstruct her dead puppy while her cousin watches.  None of this can be infered from sentence 1.
explanation_2: A girl is working on some sort of lab experiment doesn't imply that she is trying to reconstruct her dead puppy. Another girl watches doesn't necessarily mean that  her cousin is watching.
explanation_3: There is no information about the girl trying to reconstruct her dead puppy and it is not inferred the other girl is her cousin.
premise_logic: exists e1 p1 x1 x2 x3 x4.(exists e2 s1 x5 x6.(with(e2,x6) & n_expression(x6) & a_bored(s1) & Theme(s1,x6) & Actor(e2,x5) & v_watch(e2) & n_girl(x5) & -(x5 = x1)) & n_girl(x1) & n_girl(x1) & while(e1,p1) & on(e1,x2) & of(x2,x3) & n_experiment(x3) & of(x3,x4) & n_lab(x4) & n_sort(x2) & Actor(e1,x1) & v_work(e1))
hypothesis_logic: exists e1 p1 s1 x1 x2 x3 x4.(Topic(e1,p1) & Actor(e1,x1) & v_try(e1) & exists e2 x1.(while(e2,x3) & n_female(x1) & Theme(e2,x2) & Actor(e2,x1) & v_reconstruct(e2)) & n_watch(x3) & of(x3,x4) & n_cousin(x4) & of(x3,x1) & n_puppy(x2) & a_dead(s1) & Theme(s1,x2) & of(x2,x1) & n_female(x1) & n_girl(x1))