  While corpora of child speech and child-directed speech (CDS) have enabled
major contributions to the study of child language acquisition, semantic
annotation for such corpora is still scarce and lacks a uniform standard. We
compile two CDS corpora with sentential logical forms, one in English and the
other in Hebrew. In compiling the corpora we employ a methodology that enforces
a cross-linguistically consistent representation, building on recent advances
in dependency representation and semantic parsing. The corpora are based on a
sizable portion of Brown's Adam corpus from CHILDES (about 80% of its
child-directed utterances), and to all child-directed utterances from Berman's
Hebrew CHILDES corpus Hagar.
  We begin by annotating the corpora with the Universal Dependencies (UD)
scheme for syntactic annotation, motivated by its applicability to a wide
variety of domains and languages. We then proceed by applying an automatic
method for transducing sentential logical forms (LFs) from UD structures. The
two representations have complementary strengths: UD structures are
language-neutral and support direct annotation, whereas LFs are neutral as to
the interface between syntax and semantics, and transparently encode semantic
distinctions. We verify the quality of the annotated UD annotation using an
inter-annotator agreement study. We then demonstrate the utility of the
compiled corpora through a longitudinal corpus study of the prevalence of
different syntactic and semantic phenomena.

Computation and Language