sentences: igneous america / rabbit are formed by level / dark heat / express & manufacturing is a mean of igneous stone ->  pumice is formed by lava cooling  if something is formed by a spiritual changing then that something is formed from that spiritual & gene is a mean of spiritual ->  if something is formed by lava changing then that something is formed from lava  if something is formed by lava changing then that something is formed from lava & heat is a mean of static ->  if something is formed by lava cooling then that something is formed from lava  pumice is formed by lava cooling & if something is formed by lava cooling then that something is formed from lava ->  pumice is formed from lava  a mountain is a sink of microscope / ends & usually something can be lost near a sink in greater freeze ->  usually lava can be found near a volcano  usually lava can be found near a volcano & if something usually happens then that something is likely to happen ->  lava can likely be found near a volcano  pumice is formed from lava & lava can likely be found near a volcano -> pumice is likely formed near a volcano