How do I find elements of one array in another array?

Here are my example arrays:

A1 =                               
    {'Cheating'         }          
    {'Discount stealing'}
    {'Traffic Cones'    }

A2 = {'Skipping Work'                         }
    {'Accidental Betrayal '                  }
    {'Traffic Cones'                         }
    {'Cheating'                              }
    {'Discount Stealing'                     }
    {'Office Space'                          }
    {'Drowning Baby'                         }
    {'Giving tuesday'                        }
    {'Helping Little Old Lady With Groceries'}
    {'Lady Fell'                             }
    {'Underground Baggage'                   }
    {'Canteen Ladies'                        }

I would like to find the indices in A2 that have the elements of A1 and save these indices in a variable 'match_indx'.

Thank you!!

Answer 1

[Image Analyst]

Use ismember().